Natural Flights of the Human Mind : In a disused lighthouse on the Devon coast lives Peter Straker, a recluse who, in his dreams, is visited by some of the 78 people he believes he killed 24 years ago. But Straker's solitude is about to be invaded. Imogen Doody, a school caretaker with a painful history that has left her prickly and unapproachable, inherits a run-down cottage in the nearby village. And she needs help restoring it . . .