Secret of the water dragon

Someone is trying to steal the Dragon Stone. Drake soon discovers that the thief is his friend and fellow Dragon Master, Bo! Could the dark wizard somehow be behind this? The Dragon Masters must find a way to protect the Dragon Stone--and keep Bo's family out of danger. Will the secret to solving their problems lie with Bo's dragon, Shu? Drake is about to find out! Shocked to discover that Bo is trying to steal the Dragon Stone, Drake and the Dragon Masters work together to protect Bo and his dragon, Shu, from the dark wizard. Book #3