Army of Terror (Star Wars: Galaxy of Fear, Book 6)

Hoole, Tash, Zak and Deevee head for Kiva, a dark world on the Outer Rim. Somehow, Hoole knows that is where Gog's laboratory lies. There, Tash and Zak will finally learn Hoole's terrible secret. And they'll come face-to-face with a horrifying new creature, the very first soldier in Gog's Army of Terror. The creature is a combination of every one of Gog's horrible experiments, and there is only one way to defeat him. Can Tash and Zak figure out the answer before it's too late? (Digest)