Moon Scroll, The (The Secrets of Droon #15) by Tony Abbot - Paperback

A Hidden Door. A Magical Staircase, Discover the World of Droon!

Galen's gone to Goll, Lord Sparr's evil underworld! To defend himself, he needs the powerful wand of Urik, a magic tool that's been hidden for years. Keeah and her Upper World friends want to help, but the only way to find the wand is to follow the Moon Scroll. And the Scroll holds many surprises - including the power to take anyone who reads it back through time!