Bloodless shadow

Private Investigator Samantha Falconer is pretty good at taking care of herself, but when she is asked to return to Oxford to investigate the disappearance of a young woman, Sam must confront a past she hoped she's left behind. As she investigates, she finds every trail leads back to the university - but the closed, academic world is unwilling to share its secrets, and it becomes clear that someone is determined to stop Sam's search for the truth. Then out of the blue, Sam receives a letter from a man who's been dead for twenty years - her father.