Mary Curran Hackett’s PROOF OF HEAVEN, in which a single mother struggles to keep her son alive in the face of a rare heart disease that causes him to die seven times before his seventh birthday, while the mother searches for answers in the divine, her son’s doctor searches for a cure, but the boy wishes to meet his long-lost father, a journey that will test their faith and courage as they face the ultimate question of proof of heaven, to Lucia Macro at William Morrow, in a nice deal, by Marly Rusoff of Marly Rusoff & Associates (NA).