Mistwalker

Zach and Zozo are sent to Bistifinouky to check up on Audra Miles, an anthropologist studying a aboriginal species on a world where nature is in complete control, and doesn't much like technology. Zach can't deal with the tribe's shaman, Mistwalker, and is peeved because none of his devices work (bugs in 'em, literally), while the Black Hole Gang are looking for Starstones, and aren't going to let any natives get in their way. This one has a great ending.