Undocumented Crime

When Chen Mo, a student from the Chinese Department, stayed up late writing in the library, his classmate Zhang Hua from the Department of Physics suddenly fell to his death. The police quickly characterized it as a "suicide", but Chen Mo found an unusual footprint that did not belong to the deceased at the scene, as well as a spine-chilling sentence in Zhang Hua's diary - "Someone taught me to jump off a building." . . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.