Black Caravan Imprint. Provenance of Secrets brings early 50's crime noir into the realms of cosmic horror. Set in LA, a brutal murder throws up some increasingly strange leads, and pushes a detective down a path to something that is far from his usual work. Taking the world that Robert Chambers' "The King In Yellow" existed within, will only make this noir even darker and haunting. Provenance of Secrets is a recipe for a horror noir, one that you'll keep reading knowing it will only get more terrifying.