"There is an integer between 17 and 18."
The mathematician jumped off the building and disappeared in front of everyone. After librarian Sui Taotie picked up the suicide note, he was dragged into a life and death game - twelve "right or wrong doors". Every time he guessed wrong about a rule, he was one step closer to death.
The wolf and the sheep wear each other's skin, the clown fish is used as a mask, and the dead end of mermaid syndrome... It contains a wealth of brain teasers, thriller folklore, intellectual puzzles, poisonous ladies... Lottery and distinctive names, literacy difficulty, waiting for you to challenge.
