Timothy and the Dragon's Gate

"Too smart for his own good, Timothy Freshwater has finally been expelled from the last school in the city. His father takes him to his office, where he meets Mr. Shen, a mysterious mailroom clerk who turns out to be a dragon. Forced to take human shape for a thousand years, he must return to China and scale the ancient Dragon's Gate to resume his true form. Now Timothy finds himself Mr. Shen's latest keeper, stalked by a ninja and chased by a menacing trio of black taxicabs. When Mr. Shen falls into the wrong hands, Timothy must rescue him from a fleet of Chinese pirate junks."
"Timothy Freshwater--a smart-aleck boy who just got expelled from the last school in the city--learns that the Chinese mail clerk at his father's office is really an enslaved dragon who, with Timothy's help, must scale the Dragon's Gate in order to resume his true form."
"Timothy Freshwater--a smart-aleck boy who just got expelled from the last school in the city--learns that the Chinese mail clerk at his father's office is really an enslaved dragon who, with Timothy's help, must scale the Dragon's Gate in order to resume his true form."@en
"From the author of Alex and the Ironic Gentleman comes the second tale in this magical children's series-the adventures of a smart-aleck young boy who must protect a thousand-year-old dragon and return him to China."@en