Unison Spark

Everyone is obsessed with Unison, the social network that knows you better than you know yourself. Everyone who can afford it, that is. Living beneath the vast ceiling that separates Eastern Seaboard City into rich topside and poor sub-canopy zones, fifteen-year-old Mistletoe can only dream of logging in and has to make do with technological hand-me-downs.

Worlds collide when Ambrose Truax, the pri...