In the Shadow of Goll — Tony Abbott

A Hidden Door.
A Magical Staircase.
Discover The World of Droon!

It's a dangerous time in Droon. Ko and Gethwing are about to wage war. Young Sparr is on a risky undercover mission to try to defeat the evil emperor from within. And a wicked ancient sorcerer named Shadowface is vowing to wake the infamous Warriors of the Skorth to aid Ko's army of beasts.

Now Eric, Julie, Neal, and Keeah must pursue Shadowface through the treacherous Dark Lands. But what awaits them there? And what is Shadowface really after? It's up to the kids to stop him -- no matter what the cost....