There's a later glimmer of hope when he meets Clementine in a grief support group and they develop a strong bond. She, too, lost a sister and seems to understand what Jude is feeling in a way that his peers mostly don't. But too late Jude realizes that Clementine's feeling are of a different and more dangerous nature and he is out of his depth in trying to console her.
Intended as a book for young people who are coping with the loss of a sibling, I can see how learning about another child's experience might be helpful, but it's a dreary example. Jude alternates between despair and anger, and never quite manages to work through his feelings to start healing. Instead, his grief seems just to slowly suck him (and his parents) down. It's a sensitively-told story, but without any resolution there isn't much inspiration for a child who actually wants to feel better.