"Tumble Home" is narrated by people with skewed visions of home. Not exactly crazy, they become obsessed and irrational as their inner logic leads them astray. In the title novella, a woman living in a psychiatric halfway house writes to a man she has met only once. Proceeding in brief vignettes that link and illuminate, she recounts her peculiar life with the other patients. The accretions of anecdote lead deeper and deeper into the psyche and history of the narrator, gradually revealing the reason for her urgent letter.