A late-night accident on a San Francisco subway platform has altered Nat Idle's reality. But then, there are no accidents. Disoriented and bloodied after a near-deadly fall onto the subway tracks, freelance journalist [he] discovers that a beautiful stranger has come to his aid...and that the burly man who barreled into him had intended to do Nat harm. What he doesn't know is why--and his quest for answers leads him to uncover a handful of mysterious deaths, and a bizarre neurological disorder plaguing Bay Area children...as he ventures ultimately into the Cloud. In a brave new world, the Cloud is where we store data, secrets, dreams.