When Scott and Jack Carter have to stay with their great aunt for the summer they steel themselves for the most boring holiday ever. But then they meet Emily Wild and her loveable dog, Drift. Emily shows them the lighthouse, the castle - and the amazing whistling caves. Legend has it that when the caves stop whistling the castle will be attacked - and that''s exactly what happens!

Priceless treasures are stolen and Emily and the boys are determined to investigate. But how was the treasure smuggled out of the castle? Why did the caves stop whistling? And can the friends solve the mystery in time to catch the thief?

The first in an exciting new adventure series - with five more gripping mysteries to come!

When Scott , Jack and Emily hear that a film is being made at the nearby manor house they can''t resist going to watch. But when the glamorous star of the film vanishes the friends realize they have a new mystery to solve!Has the star been kidnapped by a crazed fan? Could she have run off with her boyfriend? Or did she venture into the manor''s attic at midnight and fall foul of the legendary ghost that haunts the old house?The second gripping mystery in this exciting new adventure series!

A game of hide and seek in the old Castle Key lighthouse during a violent thunder storm leads to an amazing discovery - a tattered old treasure map! Scott, Jack and Emily can''t wait to search for the hidden gold but first they must solve the clues to uncover its secret hiding place. And someone else is after the gold too - someone who doesn''t plan to let anyone get in their way!Can our heroes figure out the map, outwit their enemy and find the hidden treasure?The third title in this fabulous new series packed with mystery and adventure!

When thieves raid the house of a neighbour, Emily, Jack and Scott are ready to investigate. But, strangely, the neighbour doesn''t seem to want the thieves to be caught!The burglars didn''t escape with much this time but could the raid be connected to a much older crime involving millions of pounds? The friends begin to uncover the truth, but are they leading themselves into serious danger?Mystery, menace and adventure await in the fourth book of this gripping new series!

The circus comes to town, full of conjurors, clowns, tightrope walkers and trapeze artists. But dark secrets lurk beneath the sawdust and spangles - secrets that are part of a dangerous mystery that might prove impossible to solve!The fifth book in this gripping new adventure series!

A string of unusual crimes hits Castle Key and the chief suspect seems to be a skeleton! Scott, Jack, Emily and Drift the dog immediately start investigating, but nothing about the mystery makes sense.Will the friends finally be defeated by this baffling mix of crimes and the mysterious culprit, or can they uncover the sinister secret that connects them all?The sixth gripping mystery in the exciting new Adventure Island series!

When Scott, Jack and Emily stumble upon some bones in the quarry above Castle Key, they''re convinced they''ve discovered the gruesome remains of a murder victim! But the bones turn out to be much, much older than that - could they be dinosaur bones? Or are they the last earthly remains of a real dragon? Rival scientists fight to prove each other wrong, while the friends are determined to uncover the truth - with a little help from Drift the dog, of course!

A research team arrives in Castle Key to explore the wreck of an old smugglers'' ship that sank in Pirate Cove. When Scott and Emily dive down to the wreck, Scott glimpses a long lost artefact said to hold the key to a hoard of smuggled treasure. But when the team leader goes back to recover the artefact, it has mysteriously vanished! Was Scott mistaken or is somebody else after the smugglers'' loot?Follow Scott, Jack, Emily and Drift on a very mysterious treasure hunt.

There''s a new resident in Castle Key - and somebody is watching him! Scott, Jack, Emily and Drift soon suspect that the new resident is an enemy spy. It explains the bullet-proof glass in the windows of his house. And the MI5 agent who is clearly keeping tabs on him! But what is an enemy spy doing in Castle Key? Can the friends reveal his true identity? And uncover his top secret mission? Join Scott, Jack, Emily and Drift as they investigate a man so mysterious he''s almost invisible!

How to become an Undercover Pirate...1)Have a pirate captain as your ancient ancestor2)Find a message in a bottle and a magic gold doubloon3)Get whisked back in time to join a pirate crew4)When you get home DON''T TELL ANYONE. Remember - you''re undercover!Sam Silver lives near the sea and enjoys beach-combing for pirate treasures. When he finds an ancient message in a bottle he thinks it will make a great new relic for his collection, but the bottle holds a very special secret... Inside is a gold doubloon which whisks Sam back in time to 1706. Suddenly he''s on board a pirate ship - the Sea Wolf - surrounded by her fearsome captain and crew and sailing the Caribbean Sea. If Sam can''t think of a very good reason why they should keep him alive, he''ll be forced to walk the plank!

How to become an Undercover Pirate...1)Have a pirate captain as your ancient ancestor2)Find a message in a bottle and a magic gold doubloon3)Get whisked back in time to join a pirate crew4)When you get home DON''T TELL ANYONE. Remember - you''re undercover!When Sam Silver and the crew of the Sea Wolf board a galleon looking for Spanish gold, they find it''s already been stolen - by a ghost ship! Can our pirate heroes outwit a ghostly crew or is the treasure gone for ever?

How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor2) Find a message in a bottle and a magic gold doubloon3) Get whisked back in time to join a pirate crew4) When you get home DON''T TELL ANYONE. Remember - you''re undercover!A fearsome encounter with enemy ships leads to a huge sea battle. When the smoke clears, Sam realises Charlie has vanished. Could his crewmate have been kidnapped? It''s Sam Silver to the rescue!

How to become an Undercover Pirate...1)Have a pirate captain as your ancient ancestor2)Find a message in a bottle and a magic gold doubloon3)Get whisked back in time to join a pirate crew4)When you get home DON''T TELL ANYONE. Remember - you''re undercover!When the Sea Wolf runs aground on a remote desert island, the crew are terrified of the legendary dragon who breathes smoke and fire from the mountain. Can the pirates escape with their lives?

How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor2) Find a message in a bottle and a magic gold doubloon3) Get whisked back in time to join a pirate crew4) When you get home DON''T TELL ANYONE. Remember - you''re undercover!There''s a new pirate aboard the Sea Wolf and he''s popular with the crew, but Sam is suspicious - why is the new recruit so interested in Captain Blade? And how can Sam convince his friends that they''re falling into a deadly trap?

How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor2) Find a message in a bottle and a magic gold doubloon3) Get whisked back in time to join a pirate crew4) When you get home DON''T TELL ANYONE. Remember - you''re undercover!Captain Blade''s old enemy, Blackheart, is out for revenge. With his ruthless crew he''s determined to steal the Sea Wolf. Can Sam and the pirates outwit their deadly enemy?

When Scott and Jack Carter have to stay with their great aunt for the summer they steel themselves for the most boring holiday ever. But then they meet Emily Wild and her loveable dog, Drift. Emily shows them the lighthouse, the castle - and the amazing whistling caves. Legend has it that when the caves stop whistling the castle will be attacked - and that''s exactly what happens!

Priceless treasures are stolen and Emily and the boys are determined to investigate. But how was the treasure smuggled out of the castle? Why did the caves stop whistling? And can the friends solve the mystery in time to catch the thief?

The first in an exciting new adventure series - with five more gripping mysteries to come!

When Scott , Jack and Emily hear that a film is being made at the nearby manor house they can''t resist going to watch. But when the glamorous star of the film vanishes the friends realize they have a new mystery to solve!Has the star been kidnapped by a crazed fan? Could she have run off with her boyfriend? Or did she venture into the manor''s attic at midnight and fall foul of the legendary ghost that haunts the old house?The second gripping mystery in this exciting new adventure series!

A game of hide and seek in the old Castle Key lighthouse during a violent thunder storm leads to an amazing discovery - a tattered old treasure map! Scott, Jack and Emily can''t wait to search for the hidden gold but first they must solve the clues to uncover its secret hiding place. And someone else is after the gold too - someone who doesn''t plan to let anyone get in their way!Can our heroes figure out the map, outwit their enemy and find the hidden treasure?The third title in this fabulous new series packed with mystery and adventure!

When thieves raid the house of a neighbour, Emily, Jack and Scott are ready to investigate. But, strangely, the neighbour doesn''t seem to want the thieves to be caught!The burglars didn''t escape with much this time but could the raid be connected to a much older crime involving millions of pounds? The friends begin to uncover the truth, but are they leading themselves into serious danger?Mystery, menace and adventure await in the fourth book of this gripping new series!

The circus comes to town, full of conjurors, clowns, tightrope walkers and trapeze artists. But dark secrets lurk beneath the sawdust and spangles - secrets that are part of a dangerous mystery that might prove impossible to solve!The fifth book in this gripping new adventure series!

A string of unusual crimes hits Castle Key and the chief suspect seems to be a skeleton! Scott, Jack, Emily and Drift the dog immediately start investigating, but nothing about the mystery makes sense.Will the friends finally be defeated by this baffling mix of crimes and the mysterious culprit, or can they uncover the sinister secret that connects them all?The sixth gripping mystery in the exciting new Adventure Island series!

When Scott, Jack and Emily stumble upon some bones in the quarry above Castle Key, they''re convinced they''ve discovered the gruesome remains of a murder victim! But the bones turn out to be much, much older than that - could they be dinosaur bones? Or are they the last earthly remains of a real dragon? Rival scientists fight to prove each other wrong, while the friends are determined to uncover the truth - with a little help from Drift the dog, of course!

A research team arrives in Castle Key to explore the wreck of an old smugglers'' ship that sank in Pirate Cove. When Scott and Emily dive down to the wreck, Scott glimpses a long lost artefact said to hold the key to a hoard of smuggled treasure. But when the team leader goes back to recover the artefact, it has mysteriously vanished! Was Scott mistaken or is somebody else after the smugglers'' loot?Follow Scott, Jack, Emily and Drift on a very mysterious treasure hunt.

There''s a new resident in Castle Key - and somebody is watching him! Scott, Jack, Emily and Drift soon suspect that the new resident is an enemy spy. It explains the bullet-proof glass in the windows of his house. And the MI5 agent who is clearly keeping tabs on him! But what is an enemy spy doing in Castle Key? Can the friends reveal his true identity? And uncover his top secret mission? Join Scott, Jack, Emily and Drift as they investigate a man so mysterious he''s almost invisible!

How to become an Undercover Pirate...1)Have a pirate captain as your ancient ancestor2)Find a message in a bottle and a magic gold doubloon3)Get whisked back in time to join a pirate crew4)When you get home DON''T TELL ANYONE. Remember - you''re undercover!Sam Silver lives near the sea and enjoys beach-combing for pirate treasures. When he finds an ancient message in a bottle he thinks it will make a great new relic for his collection, but the bottle holds a very special secret... Inside is a gold doubloon which whisks Sam back in time to 1706. Suddenly he''s on board a pirate ship - the Sea Wolf - surrounded by her fearsome captain and crew and sailing the Caribbean Sea. If Sam can''t think of a very good reason why they should keep him alive, he''ll be forced to walk the plank!

How to become an Undercover Pirate...1)Have a pirate captain as your ancient ancestor2)Find a message in a bottle and a magic gold doubloon3)Get whisked back in time to join a pirate crew4)When you get home DON''T TELL ANYONE. Remember - you''re undercover!When Sam Silver and the crew of the Sea Wolf board a galleon looking for Spanish gold, they find it''s already been stolen - by a ghost ship! Can our pirate heroes outwit a ghostly crew or is the treasure gone for ever?

How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor2) Find a message in a bottle and a magic gold doubloon3) Get whisked back in time to join a pirate crew4) When you get home DON''T TELL ANYONE. Remember - you''re undercover!A fearsome encounter with enemy ships leads to a huge sea battle. When the smoke clears, Sam realises Charlie has vanished. Could his crewmate have been kidnapped? It''s Sam Silver to the rescue!

How to become an Undercover Pirate...1)Have a pirate captain as your ancient ancestor2)Find a message in a bottle and a magic gold doubloon3)Get whisked back in time to join a pirate crew4)When you get home DON''T TELL ANYONE. Remember - you''re undercover!When the Sea Wolf runs aground on a remote desert island, the crew are terrified of the legendary dragon who breathes smoke and fire from the mountain. Can the pirates escape with their lives?

How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor2) Find a message in a bottle and a magic gold doubloon3) Get whisked back in time to join a pirate crew4) When you get home DON''T TELL ANYONE. Remember - you''re undercover!There''s a new pirate aboard the Sea Wolf and he''s popular with the crew, but Sam is suspicious - why is the new recruit so interested in Captain Blade? And how can Sam convince his friends that they''re falling into a deadly trap?

How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor2) Find a message in a bottle and a magic gold doubloon3) Get whisked back in time to join a pirate crew4) When you get home DON''T TELL ANYONE. Remember - you''re undercover!Captain Blade''s old enemy, Blackheart, is out for revenge. With his ruthless crew he''s determined to steal the Sea Wolf. Can Sam and the pirates outwit their deadly enemy?