Tash, Zak and their uncle Hoole want to make sure that Borborygmus Gog's Project Starscream has been destroyed. So they journey to Kiva, a planet on the galaxy's Outer Rim.
Kiva is dark, rocky and barren. Except for some strange shadows, the planet is completely lifeless. And when the find Gog's laboratory, it's empty. Or so they think . . .