The Tiger's Apprentice (Book 3): Tiger Magic

Tom has always been a reluctant apprentice. But since his grandmother's death, he's assisted the tiger Mr. Hu in guarding the magical phoenix egg. When the phoenix hatches prematurely, Tom faces his greatest challenge of all. The phoenix believes Tom is his mother, and suddenly it's Tom's turn to be a good teacher and parent, which is especially hard when your child has the power to destroy the earth.