Afterparty / Daryl Gregory.

In the years following the Smart Drug revolution, any high school student with a chemjet and an Internet connection can download recipes and print drugs, or even invent them. The Numinous is the most insidious of these designer narcotics to emerge on the scene, capable of reprogramming a user's very beliefs, and employed as a sacrament by a new church that preys on the underclasses. When a seventeen-year-old street girl finds God through Numinous and is institutionalized for her addiction, her withdrawal leads to suicide. Lyda Rose, another troubled patient in the same psychiatric facility, has a dark secret: she was one of the original scientists who developed and suppressed Numinous. With the help of an ex-government agent and an imaginary doctor, Lyda sets out to find the other creators of the drug in a desperate effort to save lives and set things right'--Back cover.