Twisted Wing, by Ruth Newman

"Cambridge is home to 18,000 students, 1,500 academics... and one serial killer.

For the students of  Ariel College, a siege mentality has developed following weeks of media interest in "the Cambridge Butcher". University life has become not about surviving their exams, but simply about surviving.

Forensic psychiatrist Matthew Denison is sure that his traumatised patient has the killer's identity locked in her memory. THat within the little clique she belonged to lurks someone with a grudge. Someone who thought: 'What's a little decapitation between friends? Someone who has yet to finish settling their score..."

First edition, 2008, signed by the author. Paperback in good condition.

£10 at 188 Mill Road.