Book excerpt: Suzanne Kingsmill’s acclaimed murder mysteries, starring quirky zoologist-turned-sleuth Cordi O’Callaghan, is back and better than ever. This special bundle gathers all four books in one. Crazy Dead Struggling to escape the sticky blackness of a clinical depression, zoologist Cordi O’Callaghan is admitted to a psychiatric ward in Toronto. As she slowly recovers, one of the patients goes missing. Cordi must convince a skeptical staff that the woman has been murdered, and solve the case while healing her mind. Dying for Murder When zoologist Cordi O’Callaghan sets off for a remote research station off the coast of South Carolina, she expects to study birdsong in tranquility, but ends up stumbling into a hurricane, and murder. Innocent Murderer Zoology professor Cordi O’Callaghan becomes entangled in the deaths of two of her fellow passengers aboard the Susanna Moodie, a tourist ship in the Canadian Arctic. The fatalities are ruled accidental, but Cordi suspects they’re anything but. Forever Dead Zoology professor Cordi O’Callaghan keeps one stumble ahead of a murderer as she follows a path littered with motives.