His condition, which includes violent seizures, overwhelmed his father, who moved out when Shawn was three years old; the man later won a Pulitzer Prize for a poem based on his experiences as parent to a victim of C.P. Weaving together memories with present-day accounts, Shawn describes the highs and lows of his day-to-day life as well as his father's increasing fascination with euthanasia and evidence that the man is working up the courage to personally "end [Shawn's] pain." The strength of the novel lies in the father-son dynamic; the delicate scenes between them carefully illustrate their mutual quest to understand each other. The other characters (Shawn's brother and sister, mother, teachers) lack this complexity. As a result, many of the scenes feel more contrived than heartfelt ("I always feel so guilty complaining about it at all!" says his sister). All in all, the book's concepts are more compelling than the story line itself. Ages 10-up. (June)