J.D. Barker is the New York Times and international best-selling author of numerous novels, including Dracul and The Fourth Monkey. His latest, Behind a Closed Door, releases in May 2024. He is currently collaborating with James Patterson. His books have been translated into two dozen languages, sold in more than 150 countries, and have been optioned for both film and television. Barker resides in coastal New Hampshire with his wife, Dayna, and their daughter, Ember.

A clinical neuropsychologist by day, Christine Daigle’s work includes brain-computer interface, translating brain signals into commands that can control technology. As a writer, her novel was selected for the Pitch Wars industry mentorship program. An anthology including her short fiction was a finalist for an Aurora Award. Her co-authored, pen-named work on Kindle Vella was consecutively one of the top 250 serials for several years. In addition to her writing, she also co-hosts the Writers, Ink podcast. She lives in Ontario with her husband, son, and mercurial cat.