The Lost Empire of Koomba (The Secrets of Droon #35)

A hidden door. A magical staircase. Discover the world of Droon! Keeah, Julie, and Neal are determined to find a cure for the poison that transformed Eric into the evil Prince Ungast. Their quest takes them to a lost empire deep in the desert, where the mischievous Sand Children are hiding a magical elixir that may hold the secret to Eric's recovery. But the journey is filled with danger, for Gethwing is determined to stop them. And the Moon Dragon has a powerful new henchman at his disposal: Lo