Guillermo Martínez

"Mathematics student G is trying to resurrect his studies, which is proving difficult as he finds himself - and not for the first time - drawn into investigating a series of mysterious crimes. After meeting with a member of the Lewis Carroll Brotherhood, a startling new discovery by Carroll's great niece rocks Oxford, leading to deadly plots, salacious pictures and murder. G must stretch his mathematical mind to its limits to solve the mystery and...

A woman is murdered in Oxford. Her body is discovered by two men who meet for the first time at that moment: Arthur Seldom, a prestigious professor of logic, and Martin, a young graduate student who has just arrived at the University hoping to study with Seldom. It quickly becomes clear that this is the first in a series of murders, all of which are announced by the murderer with strange mathematical symbols. Professor and student join forces to try...