New York Times bestselling author Sylvain Reynard returns with the fourth installment of the beloved Gabriel's Inferno series.   When Gabriel and Julia Emerson first lay eyes on their newborn daughter, Clare, they realize life as they know it will never be the same. Gabriel has vowed to be a good father when he suddenly receives an invitation to give a series of lectures in Edinburgh, Scotland--an opportunity of high prestige—but that would mean leaving his wife and child in