Josh Stephenson's thirteenth year starts with a baffling sequence of events. His estranged father has just sent him a taxidermied falcon for his birthday. His flirty seventeen-year-old girl cousin has moved into his house, using his bedroom as a passageway and taking bubble baths in the unlockable bathroom. And now he's gone AWOL from school to escape the locker-room teasing about certain embarrassing anatomical changes. On top of all that, he's in love, but wondering if dreams of love can ever come true. Hiding out in his secret hollow in a big rock by the sea, Josh tries to figure out once and for all: is his life being sucked into a black hole, or is this just being thirteen?