Twelve-year-old Crispin has lived on the streets since he was nine, with only his wits and his daring to sustain him, and only his silent dog, Harley, to call his friend. The city he roams has things unexplainable and maybe unimaginable; Crispin has seen ghosts in the dead of night, and sensed dimensions beyond reason in broad daylight. Hints of things disturbing and strange nibble at the edges of his existence.