"Usborne Solve It Yourself" was the original series title for the Usborne Puzzle Adventures, used on the first three titles of that sequence before being changed. The title was later revived for this series of original puzzle books, separate from the main Usborne Puzzle Adventures line.
Puzzle BooksWhatever Happened to Professor Potts?
Where Is the Pirate's Treasure?
Who Shot the Sheriff?
Who Stole the Black Diamond?
Who's Haunting the House of Horror?
Who's the Prisoner of Portcullis Castle?
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