A Kirkus Best Book of the YearShortlisted for the Global Literature in Libraries YA Translated Book PrizeA USBBY Outstanding International BookMika is not your average twelve-year-old—and she’s about to prove it.It’s 1880, and in the frigid city of Stockholm, death lurks around every corner. Twelve-year-old Mika knows that everyone in her orphanage will struggle to survive this winter. But at least the notorious serial killer the Night Raven is finally off the streets…or is he?Mika is shocked when a newborn baby is left at the orphanage in the middle of the night, by a boy with a cryptic message. Who is he? And who is this “Dark Angel” he speaks of? When a detective shows up, Mika senses something even more sinister is going on.Drawn in by Mika’s unique ability to notice small details—a skill Mika has always used to survive—the gruff Detective Hoff unwittingly recruits her to help him with his investigation into a gruesome murder. Mika knows she should stay far, far away, and yet…with such little hope for her future, could this be an opportunity? Maybe, just maybe, this is Mika’s chance to be someone who matters.

An Outstanding International Book (USBBY)A 2025 TEACHERS’ FAVORITE!Mika will do what it takes to uncover a string of thefts in the city—and keep her fellow orphans safe.After a merciless winter, spring has sprung in 1880 Stockholm, and the city awaits the arrival of the SS Vega, the first ship to have sailed the Northeast Passage. Life is busy at the orphanage, but twelve-year-old Mika quickly notices that the older orphans are up to something—and it doesn’t look good.When Constable Hoff approaches her with information about thefts around the city, Mika becomes even more concerned about what the other kids are up to—and what they might be planning for the Vega celebration. The police will have no sympathy for orphans, and she’d hate to see her friends condemned to life in jail.But Mika soon finds herself in a bind she can’t get out of—one that could condemn her own life. Can Mika uncover who is really behind the thefts in the city and keep her friends safe, without getting caught? Find out in this breathless sequel to The Night Raven.

An Outstanding International Book (USBBY)A 2025 TEACHERS’ FAVORITE!Mika will do what it takes to uncover a string of thefts in the city—and keep her fellow orphans safe.After a merciless winter, spring has sprung in 1880 Stockholm, and the city awaits the arrival of the SS Vega, the first ship to have sailed the Northeast Passage. Life is busy at the orphanage, but twelve-year-old Mika quickly notices that the older orphans are up to something—and it doesn’t look good.When Constable Hoff approaches her with information about thefts around the city, Mika becomes even more concerned about what the other kids are up to—and what they might be planning for the Vega celebration. The police will have no sympathy for orphans, and she’d hate to see her friends condemned to life in jail.But Mika soon finds herself in a bind she can’t get out of—one that could condemn her own life. Can Mika uncover who is really behind the thefts in the city and keep her friends safe, without getting caught? Find out in this breathless sequel to The Night Raven.

Mika will do what it takes to make sure there are no more lost ones—and to bring the infamous killer, the Dark Angel, out into the light.It’s summer in 1880 Stockholm, and the city bakes in the heat—but the heat on twelve-year-old Mika is lifting. After lying low following the dramatic blast at the jail, Mika’s relieved to learn her name is finally cleared. And it’s not a moment too soon—because Detective Hoff has a perplexing case involving the disappearance of a local teen. The girl’s wealthy family wants to make sure things stay quiet. Why would a girl who has everything want to run away? And why is her family so afraid to go public?Then Tekla reaches out to Mika with a truly chilling discovery at a construction site in the city—a discovery that might hit a little too close to home for Mika. Could it be the work of the Dark Angel?As the summer heats up, Mika will make some tough choices as she works to uncover these mysteries, including the biggest mystery of all: her own family. Join Mika and Detective Hoff in this thrilling new installment of the Moonwind Mysteries series!

Mika will do what it takes to make sure there are no more lost ones—and to bring the infamous killer, the Dark Angel, out into the light.It’s summer in 1880 Stockholm, and the city bakes in the heat—but the heat on twelve-year-old Mika is lifting. After lying low following the dramatic blast at the jail, Mika’s relieved to learn her name is finally cleared. And it’s not a moment too soon—because Detective Hoff has a perplexing case involving the disappearance of a local teen. The girl’s wealthy family wants to make sure things stay quiet. Why would a girl who has everything want to run away? And why is her family so afraid to go public?Then Tekla reaches out to Mika with a truly chilling discovery at a construction site in the city—a discovery that might hit a little too close to home for Mika. Could it be the work of the Dark Angel?As the summer heats up, Mika will make some tough choices as she works to uncover these mysteries, including the biggest mystery of all: her own family. Join Mika and Detective Hoff in this thrilling new installment of the Moonwind Mysteries series!

Mika is finally meeting her mother. It should be a cause for celebration. Instead, it’s one of caution as she is drawn into a dark and twisted mystery.Now thirteen, Mika has left behind her Stockholm orphanage for a treacherous journey with Detective Hoff to finally meet her mother, Annie Moonwind, a maid at the imposing Roseboon estate. Upon their arrival, and to their surprise, Valdemar is mistaken for the local constable, and Mika his errand girl, summoned to arrest Annie for mysterious crimes.But are dark forces at work at Roseboon? After all, doors are kept bolted. Windows are nailed shut. And screams pierce the dark. Maybe something wicked has been unleashed. Everything points to a creature that only comes at night. So why is Annie in the crosshairs?Now Mika and Valdemar must maintain their bluff long enough to uncover the mysteries of Roseboon and free Mika’s mother from captivity before accusations against her become inescapable. Mika and Detective Hoff are back in this spine-tingling new installment of the Moonwind Mysteries series!

Mika is finally meeting her mother. It should be a cause for celebration. Instead, it’s one of caution as she is drawn into a dark and twisted mystery.Now thirteen, Mika has left behind her Stockholm orphanage for a treacherous journey with Detective Hoff to finally meet her mother, Annie Moonwind, a maid at the imposing Roseboon estate. Upon their arrival, and to their surprise, Valdemar is mistaken for the local constable, and Mika his errand girl, summoned to arrest Annie for mysterious crimes.But are dark forces at work at Roseboon? After all, doors are kept bolted. Windows are nailed shut. And screams pierce the dark. Maybe something wicked has been unleashed. Everything points to a creature that only comes at night. So why is Annie in the crosshairs?Now Mika and Valdemar must maintain their bluff long enough to uncover the mysteries of Roseboon and free Mika’s mother from captivity before accusations against her become inescapable. Mika and Detective Hoff are back in this spine-tingling new installment of the Moonwind Mysteries series!

In this breathtaking conclusion to the Moonwind Mysteries, Mika must brave a criminal underworld and unmask an infamous killer before he strikes again.It’s early spring in Stockholm, and thirteen-year-old Mika Moonwind is navigating a complicated new life—working in the very orphanage where she was raised and finally reuniting with her mother. When one of the ramshackle sheds that the Girls gang calls home goes up in a blaze, leading to a beloved member’s death, Mika jumps into action.While the fire initially seems like an accident, Mika feels in her gut that something more sinister is at play. Detective Hoff agrees. It looks like murder. Suspicions lean toward a phantom killer known as the Black Viper. But why would a notorious assassin linked to murders across the country target this young woman in Stockholm?Racing through Sweden’s criminal underworld, Mika must use her sharp observational skills and network of unlikely allies to stop this killer. Because Mika will always stand up for her friends, and those who remain must live on for the ones who didn’t make it. Mika and Detective Hoff are back in this thrilling final installment of the Moonwind Mysteries!© 2023, 2026 by Johan Rundberg, all rights reserved. Translation © 2026 by A. A. Prime.

A Kirkus Best Book of the YearShortlisted for the Global Literature in Libraries YA Translated Book PrizeA USBBY Outstanding International BookMika is not your average twelve-year-old—and she’s about to prove it.It’s 1880, and in the frigid city of Stockholm, death lurks around every corner. Twelve-year-old Mika knows that everyone in her orphanage will struggle to survive this winter. But at least the notorious serial killer the Night Raven is finally off the streets…or is he?Mika is shocked when a newborn baby is left at the orphanage in the middle of the night, by a boy with a cryptic message. Who is he? And who is this “Dark Angel” he speaks of? When a detective shows up, Mika senses something even more sinister is going on.Drawn in by Mika’s unique ability to notice small details—a skill Mika has always used to survive—the gruff Detective Hoff unwittingly recruits her to help him with his investigation into a gruesome murder. Mika knows she should stay far, far away, and yet…with such little hope for her future, could this be an opportunity? Maybe, just maybe, this is Mika’s chance to be someone who matters.

An Outstanding International Book (USBBY)A 2025 TEACHERS’ FAVORITE!Mika will do what it takes to uncover a string of thefts in the city—and keep her fellow orphans safe.After a merciless winter, spring has sprung in 1880 Stockholm, and the city awaits the arrival of the SS Vega, the first ship to have sailed the Northeast Passage. Life is busy at the orphanage, but twelve-year-old Mika quickly notices that the older orphans are up to something—and it doesn’t look good.When Constable Hoff approaches her with information about thefts around the city, Mika becomes even more concerned about what the other kids are up to—and what they might be planning for the Vega celebration. The police will have no sympathy for orphans, and she’d hate to see her friends condemned to life in jail.But Mika soon finds herself in a bind she can’t get out of—one that could condemn her own life. Can Mika uncover who is really behind the thefts in the city and keep her friends safe, without getting caught? Find out in this breathless sequel to The Night Raven.

An Outstanding International Book (USBBY)A 2025 TEACHERS’ FAVORITE!Mika will do what it takes to uncover a string of thefts in the city—and keep her fellow orphans safe.After a merciless winter, spring has sprung in 1880 Stockholm, and the city awaits the arrival of the SS Vega, the first ship to have sailed the Northeast Passage. Life is busy at the orphanage, but twelve-year-old Mika quickly notices that the older orphans are up to something—and it doesn’t look good.When Constable Hoff approaches her with information about thefts around the city, Mika becomes even more concerned about what the other kids are up to—and what they might be planning for the Vega celebration. The police will have no sympathy for orphans, and she’d hate to see her friends condemned to life in jail.But Mika soon finds herself in a bind she can’t get out of—one that could condemn her own life. Can Mika uncover who is really behind the thefts in the city and keep her friends safe, without getting caught? Find out in this breathless sequel to The Night Raven.

Mika will do what it takes to make sure there are no more lost ones—and to bring the infamous killer, the Dark Angel, out into the light.It’s summer in 1880 Stockholm, and the city bakes in the heat—but the heat on twelve-year-old Mika is lifting. After lying low following the dramatic blast at the jail, Mika’s relieved to learn her name is finally cleared. And it’s not a moment too soon—because Detective Hoff has a perplexing case involving the disappearance of a local teen. The girl’s wealthy family wants to make sure things stay quiet. Why would a girl who has everything want to run away? And why is her family so afraid to go public?Then Tekla reaches out to Mika with a truly chilling discovery at a construction site in the city—a discovery that might hit a little too close to home for Mika. Could it be the work of the Dark Angel?As the summer heats up, Mika will make some tough choices as she works to uncover these mysteries, including the biggest mystery of all: her own family. Join Mika and Detective Hoff in this thrilling new installment of the Moonwind Mysteries series!

Mika will do what it takes to make sure there are no more lost ones—and to bring the infamous killer, the Dark Angel, out into the light.It’s summer in 1880 Stockholm, and the city bakes in the heat—but the heat on twelve-year-old Mika is lifting. After lying low following the dramatic blast at the jail, Mika’s relieved to learn her name is finally cleared. And it’s not a moment too soon—because Detective Hoff has a perplexing case involving the disappearance of a local teen. The girl’s wealthy family wants to make sure things stay quiet. Why would a girl who has everything want to run away? And why is her family so afraid to go public?Then Tekla reaches out to Mika with a truly chilling discovery at a construction site in the city—a discovery that might hit a little too close to home for Mika. Could it be the work of the Dark Angel?As the summer heats up, Mika will make some tough choices as she works to uncover these mysteries, including the biggest mystery of all: her own family. Join Mika and Detective Hoff in this thrilling new installment of the Moonwind Mysteries series!

Mika is finally meeting her mother. It should be a cause for celebration. Instead, it’s one of caution as she is drawn into a dark and twisted mystery.Now thirteen, Mika has left behind her Stockholm orphanage for a treacherous journey with Detective Hoff to finally meet her mother, Annie Moonwind, a maid at the imposing Roseboon estate. Upon their arrival, and to their surprise, Valdemar is mistaken for the local constable, and Mika his errand girl, summoned to arrest Annie for mysterious crimes.But are dark forces at work at Roseboon? After all, doors are kept bolted. Windows are nailed shut. And screams pierce the dark. Maybe something wicked has been unleashed. Everything points to a creature that only comes at night. So why is Annie in the crosshairs?Now Mika and Valdemar must maintain their bluff long enough to uncover the mysteries of Roseboon and free Mika’s mother from captivity before accusations against her become inescapable. Mika and Detective Hoff are back in this spine-tingling new installment of the Moonwind Mysteries series!

Mika is finally meeting her mother. It should be a cause for celebration. Instead, it’s one of caution as she is drawn into a dark and twisted mystery.Now thirteen, Mika has left behind her Stockholm orphanage for a treacherous journey with Detective Hoff to finally meet her mother, Annie Moonwind, a maid at the imposing Roseboon estate. Upon their arrival, and to their surprise, Valdemar is mistaken for the local constable, and Mika his errand girl, summoned to arrest Annie for mysterious crimes.But are dark forces at work at Roseboon? After all, doors are kept bolted. Windows are nailed shut. And screams pierce the dark. Maybe something wicked has been unleashed. Everything points to a creature that only comes at night. So why is Annie in the crosshairs?Now Mika and Valdemar must maintain their bluff long enough to uncover the mysteries of Roseboon and free Mika’s mother from captivity before accusations against her become inescapable. Mika and Detective Hoff are back in this spine-tingling new installment of the Moonwind Mysteries series!

In this breathtaking conclusion to the Moonwind Mysteries, Mika must brave a criminal underworld and unmask an infamous killer before he strikes again.It’s early spring in Stockholm, and thirteen-year-old Mika Moonwind is navigating a complicated new life—working in the very orphanage where she was raised and finally reuniting with her mother. When one of the ramshackle sheds that the Girls gang calls home goes up in a blaze, leading to a beloved member’s death, Mika jumps into action.While the fire initially seems like an accident, Mika feels in her gut that something more sinister is at play. Detective Hoff agrees. It looks like murder. Suspicions lean toward a phantom killer known as the Black Viper. But why would a notorious assassin linked to murders across the country target this young woman in Stockholm?Racing through Sweden’s criminal underworld, Mika must use her sharp observational skills and network of unlikely allies to stop this killer. Because Mika will always stand up for her friends, and those who remain must live on for the ones who didn’t make it. Mika and Detective Hoff are back in this thrilling final installment of the Moonwind Mysteries!© 2023, 2026 by Johan Rundberg, all rights reserved. Translation © 2026 by A. A. Prime.