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Lena Ollefs

About the Author

Thames & Kosmos, creators of the popular “EXIT: The Book” series, have been bringing educational fun to families since 2001. A collaboration between a historic German publisher and a Rhode Island science museum, their mission is to deliver imaginative and interactive experiences that inspire curiosity. Known for their bestselling escape room games “EXIT: The Game” which has sold over 20 million units worldwide in 28 countries and 20 languages, they’ve now translated the excitement of their games into book form, with more than 275,000 copies sold globally.

Perfect for families and puzzle lovers alike, “EXIT: The Book” series combines thrilling narratives with interactive challenges that require cutting, folding, and decoding clues to solve. Each story, like the adventure in The Clue in the Attic: A Puzzle Adventure or The Woman in the Fog: A Puzzle Graphic Novel challenges readers with riddles, number puzzles, and cryptic symbols, creating a fully immersive escape room experience. Ideal for kids and beginners, these books provide hours of engaging brainteasers and story-driven fun that bring families together. With easy-to-follow clues and varying puzzle difficulties, each book is a new adventure.

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By the Author

EXIT: The Book – Danger at the North Pole
EXIT: The Book – Danger at the North Pole

EXIT: The Book – Danger at the North Pole

by Lena Ollefs, by Inka Brand, by Markus Brand, Illustrated by Burkhard Schulz

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