Title: Tower of the Elf King (Secrets of Droon, 9)
First published: March 2001
Description: A Hidden Door.
A Magical Staircase.
Discover the World of Droon!
Somebody has robbed the Lumpies' village! And it can't be Lord Sparr - because he has mysteriously disappeared. The rumor is that a terrible beast is behind the crime. So Eric, Julie, and Neal set  off with Khan and Princess Keeah to find the creature. Instead they find a big surprise!  Reading Level 7 to10.