Deep in the Kuiper Belt, something is going horribly wrong on the Mymercia colony, and Fola--a molectrician working on the engineered plants and ecotecture of the new colonies--is caught in the middle of it. Her team destroyed, the ecotecture of Mymercia in shambles, Fola finds herself in the midst of a growing catstrophe--an attack on the engineered ecosystem by a piece of rogue code that threatens to dismantle the clades and the complex ecotecture that keeps everyone on Earth and the colonies alive. Somehow she must reach L. Mariachi, burnt out Mexitallic singer, now a bracero working the ryce vats in Colorado, and convince him to do the one thing he swore he'd never do again. For without him, the entire system--and all the lives in it--are doomed to CRACHE.