Two mathematicians must join forces to stop a serial killer in this spellbinding international bestseller It begins on a summer day in Oxford, when a young Argentine graduate student finds his landlady - an elderly woman who helped crack the Enigma Code during World War II - murdered in cold blood. Meanwhile, a renowned Oxford logician receives an anonymous note bearing a circle and the words "the first of a series." As the murders begin to pile up and more symbols are revealed, it is up to this unlikely pair to decipher the pattern before the killer strikes again.

This literary thriller set at Oxford University puts talented mathematics student G at the center of a murder mystery sparked by the discovery of hidden secrets in the life of famed author Lewis Carroll. Mathematics student G is trying to resurrect his studies, which is proving difficult as he finds himself drawn into investigating a series of mysterious crimes. When Kristen, a researcher hired by the Lewis Carroll Brotherhood, makes a startling new discovery concerning pages torn from Caroll's diary, she hesitates to reveal to her employers a hitherto unknown chapter in his life. Oxford would be rocked to its core if the truth about Lewis Carroll's relationship with Alice Liddell—the real Alice—were brought to light. After Kristen is involved in a surreal accident and members of the Brotherhood are anonymously sent salacious photographs of Alice, G joins forces with Kristen as they begin to confront that sinister powers that are at work. More pictures are received, and it becomes clear that a murderer is stalking anyone who shows too much interest in uncovering certain aspects of Lewis Carroll's life. G must stretch his mathematical mind to its limits to solve the mystery and understand the cryptic workings of the Brotherhood. Until then, nobody—not even G himself—is safe. A thrilling novel inspired by true, strange stories from Lewis Caroll's life, The Oxford Brotherhood is sure to make you curiouser and curiouser.