books by subject
Puzzle Books for Children

The Haunted Tower (Usborne Puzzle Adventures S.)

Ghost in the Mirror (Usborne Puzzle Adventures S.)

Ghost Puzzle Adventures (Usborne Puzzle Adventures S.)

Emerald Conspiracy (Usborne Puzzle Adventures S.)

Invisible Spy (Usborne Puzzle Adventures S.)

Puzzle Island (Usborne Young Puzzles)

History Quizbook (Quizbooks)

Puzzle Town (Young Puzzles)

Puzzle Farm (Young Puzzles)

Multiplying and Dividing Puzzle (Usborne Mathematics Skills S.)

Adding and Subtracting Puzzles (Usborne Mathematics Skills S.)

Puzzle Planet (Young Puzzles)

Dragon in the Cupboard (Usborne Young Puzzle Adventures)

The Usborne Book of Questions and Answers (Quizbooks)

Agent Arthur's Desert Challenge: 19 (Usborne Puzzle Adventures S.)

Lucy and the Sea Monster (Usborne Young Puzzle Adventures S.)

Mutiny at Crossbones Bay (Usborne Puzzle Adventures S.)

Puzzle Journey Through Time (Puzzle Journeys)

Puzzle Dungeon (Young Puzzles)

Fractions and Decimals (Usborne Mathematics Skills S.)

Voyage to the Edge of the World: No. 20 (Usborne Puzzle Adventures S.)

Castle of Intrigue (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.)
