The moon dragon

When Eric and his friends finally return home from Droon, they discover that Gethwing, the moon dragon, has kidnapped most of the townspeople, including their parents, and is on the hunt for a magical object to become more powerful. Eric and his friends must rescue their parents and other adults in their hometown from Gethwing, the moon dragon. There's no place like home. Eric and his friends have finally restored the Rainbow Stairs, but that was the easy part. Now Gethwing is loose in the upper world, and the moon dragon is causing big trouble. Eric, Julie, and Neal have to protect their town, but they are up against mysterious creatures, strangely behaving parents, and powerful magic. Can the kids stop Gethwing before he destroys the upper world for good?