Read Bugs in the Arroyo Storyline:
The bugs eat metal and leave people and animals alone -- unless you crush one, and then they'll swarm and destroy everything they touch. When Kimball comes upon twelve-year-old Thayet, she's been stuck on a rock in a river of bugs for two days, no food, no water, and no way back.This is an excerpt from 7th Sigma.
Pages of Bugs in the Arroyo :