Andrew Mayne is the Wall Street Journal bestselling author of The Naturalist, Looking Glass, Murder Theory, Dark Pattern, and Angel Killer, as well as an Edgar Award nominee for Black Fall in his Jessica Blackwood series. Sea Castle is the fourth book in his Underwater Investigation Unit series, following Sea Storm, Black Coral, and The Girl Beneath the Sea. The star of Discovery Channel’s Shark Week special Andrew Mayne: Ghost Diver and A&E’s Don’t Trust Andrew Mayne, he currently works on creative applications for artificial intelligence as the science communicator for OpenAI.

“The plot comes together like the proverbial puzzle, each juicy piece adding a bit to a disturbing big picture. A savvy police procedural that executes a familiar formula with panache.” —Kirkus Reviews“Mayne combines a brilliant, innovative female lead with a plausibly twisty plot. Kinsey Millhone fans will love McPherson.” —Publishers Weekly (starred review)“Mayne creates a world that blends the crime writing of Michael Connelly with high-tech oceanography in his Underwater Investigation Unit series…The series never ceases to be fascinating, making characters sink or swim as lives are on the line and the story veers in unexpected directions. Required reading for any suspense fan.” —Library Journal“This is an above-average thriller that never ceases to surprise readers.... [T]he experience that Andrew Mayne has created for us [is] one to truly savor.” —Bookreporter

Andrew Mayne is the Wall Street Journal bestselling author of The Naturalist, Looking Glass, Murder Theory, Dark Pattern, and Angel Killer, as well as an Edgar Award nominee for Black Fall in his Jessica Blackwood series. Sea Castle is the fourth book in his Underwater Investigation Unit series, following Sea Storm, Black Coral, and The Girl Beneath the Sea. The star of Discovery Channel’s Shark Week special Andrew Mayne: Ghost Diver and A&E’s Don’t Trust Andrew Mayne, he currently works on creative applications for artificial intelligence as the science communicator for OpenAI.

“The plot comes together like the proverbial puzzle, each juicy piece adding a bit to a disturbing big picture. A savvy police procedural that executes a familiar formula with panache.” —Kirkus Reviews“Mayne combines a brilliant, innovative female lead with a plausibly twisty plot. Kinsey Millhone fans will love McPherson.” —Publishers Weekly (starred review)“Mayne creates a world that blends the crime writing of Michael Connelly with high-tech oceanography in his Underwater Investigation Unit series…The series never ceases to be fascinating, making characters sink or swim as lives are on the line and the story veers in unexpected directions. Required reading for any suspense fan.” —Library Journal“This is an above-average thriller that never ceases to surprise readers.... [T]he experience that Andrew Mayne has created for us [is] one to truly savor.” —Bookreporter

Andrew Mayne is the Wall Street Journal bestselling author of The Naturalist, Looking Glass, Murder Theory, Dark Pattern, and Angel Killer, as well as an Edgar Award nominee for Black Fall in his Jessica Blackwood series. Sea Castle is the fourth book in his Underwater Investigation Unit series, following Sea Storm, Black Coral, and The Girl Beneath the Sea. The star of Discovery Channel’s Shark Week special Andrew Mayne: Ghost Diver and A&E’s Don’t Trust Andrew Mayne, he currently works on creative applications for artificial intelligence as the science communicator for OpenAI.

“The plot comes together like the proverbial puzzle, each juicy piece adding a bit to a disturbing big picture. A savvy police procedural that executes a familiar formula with panache.” —Kirkus Reviews“Mayne combines a brilliant, innovative female lead with a plausibly twisty plot. Kinsey Millhone fans will love McPherson.” —Publishers Weekly (starred review)“Mayne creates a world that blends the crime writing of Michael Connelly with high-tech oceanography in his Underwater Investigation Unit series…The series never ceases to be fascinating, making characters sink or swim as lives are on the line and the story veers in unexpected directions. Required reading for any suspense fan.” —Library Journal“This is an above-average thriller that never ceases to surprise readers.... [T]he experience that Andrew Mayne has created for us [is] one to truly savor.” —Bookreporter