When Ty and Lyla buy an uninhabited Pacific island at auction, it feels less like a spontaneous decision than a needed escape, from a city that has taken more than it has given, and from a future that quietly closed without warning. The island is real and manageable. A cove, a beach, monkeys in the canopy. They build a house. They start a life. Then they find the door in the mountain. Beneath the volcanic ridge, sealed since 1945, a hidden base tells the story of a Nazi biological program that used the island's primate population as test subjects. The research was meticulous. The results were not contained. The island has been waiting ever since. Affe Island is a literary thriller about grief, escape, and the things that survive long after the people who made them are gone. This is a quiet book that becomes something else. Readers who prefer psychological dread over graphic horror will find what they are looking for here.