On the trail of a missing friend who had been experimenting with mind-altering drugs, a young journalist- aided by a rogue counter-culture writer — finds herself drawn into the dangerous world of top-secret government chemical research and the mystery of a disturbing radio signal of unknown origin. A fast-paced thriller blending fact and fiction, Banshee Chapter is based on real documents, actual test subject testimony, and uncovered secrets about covert programs run by the CIA.