books by subject
Puzzle Books for Children
Castle of Intrigue: No.22 (Usborne Puzzle Adventures S.)
Puzzle Jungle (Young Puzzles)
Puzzle Journey Into Space (Puzzle Journeys)
Charts and Graphs (Usborne Mathematics Skills S.)
Puzzle Adventure Omnibus: No. 1-7 (Usborne Puzzle Adventures S.)
Chateau-mystere/Mystery Castle (Usborne Bilingual Books (Young Puzzles) S.)
Whatever Happened to Professor Potts? (Usborne Solve it Yourself S.)
Where is the Pirate's Treasure?: Follow the Clues to Unravel the Mystery (Usborne Solve it Yourself S.)
Book of Games and Puzzles (Usborne Activity Books)
Dark Dark Knight (Usborne Puzzle Adventures S.)
Agent Arthur's Island Adventure: 26 (Usborne Puzzle Adventures S.)
The Crimebusters Investigate: 25 (Usborne Puzzle Adventures S.)
Lucy and the Sea Monster to the Rescue (Young Puzzle Adventure S.)
Molly's Magic Carpet (Usborne Young Puzzle Adventures S.)
Uncle Pete's Pirate Adventure (Usborne Young Puzzle Adventures S.)
Puzzle Train
Puzzle Ocean [Usborne Young Puzzles]
Great Undersea Search (Usborne Great Searches)
The Great World Tour (Usborne Great Searches)
L'Ile Fantastique/Fantastic Island (Usborne Bilingual Books)
Puzzle School (Young Puzzles)
Puzzle Journey Around the World (Usborne Young Puzzles)
Puzzle Journey Under the Sea
Prisoner of Portcullis Castle (Usborne Solve it Yourself S.)
Prisoner of Portcullis Castle (Usborne Solve it Yourself S.)
The Big Bug Search (Usborne Great Searches)
1001 Things to Spot Long Ago
"Puzzle Journey Through Time", "Puzzle Journey Through Space", "Puzzle Journey Around the World" (Usborne Puzzle Journeys S.)
The Great Balloon Race (Usborne Picture Puzzles S.)
