Toby's Treehouse (Paperback) (ISBN-13: 9780228867722)

Toby is a young boy who suffers from asthma. His father builds him a treehouse and buys him a telescope. While looking through his telescope he sees a small blue bird which leads him on an adventure, forgetting he can't really fly. He learns to use his imagination in a way he never could before and it teaches him to fly above his pain and fear.