Tom and the tree house - Joan Lingard

Tom is adopted. But he's always known about it, and always considered himself special. His parents have chosen him above anyone else. But with the arrival of a new baby on the scene, Tom isn't so sure he's all that special any more. He retreats from his parents and his next-door neighbour into his hideaway tree house. Now his parents have to show him how much they want and love him, and he has to learn to accept the arrival of a new baby sister. A touching story with plenty of humour - beautifully written and illustrated.