When Henrietta 'Harry' McCabre's employer, a dodgy antiquarian, is found murdered, she promptly shoots to the top of Inspector Darian Watley's suspect list. Fortunately she has a solid alibi: at the time of the murder she was delivering a rare and precious book for Buckley: the Clavicule Necroire. Soon the whole case revolves around the Necroire, as the mysterious tome allegedly has the power to turn people immortal. And since Harry was the last person...