Selling a detective puzzle book in English. A Sherlock Holmes Escape Book. The adventure of the British Museum. In my opinion, the book is ideal for: people who love to solve puzzles, for teenagers who are actively studying English. The language in the book is very simple. There are puzzles of varying difficulty, but all solvable. Overall, the book is not difficult, but fascinating. I completed the investigation in a couple of hours. I bought it in London at the British Museum. I didn't make any clues or notes in the book, except for checkmarks on top to avoid getting confused in the moves, I will erase them.