phenomen a book

Jack and Jill have spent every moment of their lives together, growing up through thick and thin and barrelling past any obstacles that threaten to tear them apart. There''''s only one problem the two haven''''t been able to solve: Jill isn''''t real. Detained in a religious complex designed to heal the mentally unstable, Jack spends his days talking to the sister he sees in his head and listening to the stories of the other patients. When disaster strikes the complex, he wakes up forty years earlier in his childhood body... only to discover that he doesn''''t exist in this world and never has. His parents only ever had one child.