Demons of the Ocean

Tide of Terror

Blood Captain

Black Heart

Empire of Night

Immortal War

Allies & Assassins

A Conspiracy of Princes

Escape from the Blood Castle (By: Graham Round,Jenny Tyler)

The Curse of the Lost Idol (By: Graham Round,Gaby Waters)

Murder on the Midnight Plane (By: Graham Round,Gaby Waters)

The Incredible Dinosaur Expedition (By: Karen Dolby)

Danger at Demon's Cove (By: Karen Dolby)

Time Train To Ancient Rome (By: Gaby Waters)

Journey to the Lost Temple (By: Susannah Leigh)

The Haunted Tower (By: Kim Blundell,Brian Robertson,Brenda Haw,Roy Preston,Karen Dolby,Susannah Leigh,Sarah Dixon)

The Ghost in the Mirror (By: Karen Dolby)

Search for the Sunken City (By: Martin Oliver)

The Usborne Book of Ghost Puzzle Adventures (By: Karen Dolby,Gaby Waters,Susannah Leigh,Sarah Dixon)

Agent Arthur's Arctic Adventure (By: Martin Oliver)

The Second Usborne Book of Puzzle Adventures (By: Karen Dolby,Susannah Leigh,Marjorie Everitt,Martin Oliver)

The Vanishing Village (By: Sarah Dixon)

Agent Arthur's Puzzle Adventures (By: Paddy Mounter,Martin Oliver)

The Intergalactic Bus Trip (By: Brenda Haw,Martin Oliver,Martin Newton)

The Fourth Usborne Book Of Puzzle Adventures (By: Paul Stewart,Mark Burgess,Martin Oliver,Michelle Bates)

The Pyramid Plot

Mutiny at Crossbones Bay (By: Mark Burgess,Phil Roxbee Cox)

The Third Usborne Book of Puzzle Adventures (With: Michelle Bates,Mark Fowler)

The Emerald Conspiracy (By: Mark Fowler)

Agent Arthur's Desert Challenge (By: Martin Oliver)

Mystery on Main Street (By: Tony Allan)

Uncle Pete The Pirate (By: Susannah Leigh)

Voyage to the Edge of the World (By: Lesley Sims)

Castle of Intrigue (By: Paul Stewart)

Fifth Book of Puzzle Adventures (By: Mark Fowler,L. Simms)

The Crimebusters Investigate (By: Michelle Bates,Mark Fowler,Corinne Stockley)

Agent Arthur's Island Adventure (By: Lesley Sims)

The Usborne Big Book of Puzzle Adventures (By: Jenny Tyler,Karen Dolby)

Adventures in Puzzle World (By: Susannah Leigh)