Crowe was an environmental biology student tracking geomagnetic anomalies in the Pacific Northwest when the current of a rising creek pulled him under. He wakes up on a mattress in Beacon Hills with a body that isn't his and a brass-bound ledger that translates the world into a language of ley lines and supernatural signatures. As a transmigrator who knows the tragedy waiting for the Hale family and the chaos coming for Scott McCall, Crowe must use The Emissary's Ledger to bridge the gap between biology and folklore. He isn't an Alpha or a Hunter; he's the man mapping the territory before the war arrives, trying to stay an "Emissary-in-Waiting" while the Green Ink in his margins begins to write a story he didn't plan.