The Dark Dark Knight (Usborne Puzzle Adventures #23)

It's an ordinary day for Haley and Martha - until they accidentally wake two knights from a thousand-year sleep. Suddenly they find themselves on a daring and dangerous journeying through the ancient kingdom of Hamalot, in search of Good King Stan. For only Good King Stan can save both the past and the present from the evil threat of the Dark Dark Knight.
Each book in this exciting series contains a thrilling adventure story, packed with entertaining puzzles to solve. There are clues to help you if you get stuck along the way and answers at the back of each book.

Infantojuvenil / Suspense e Mistério