Out of the Dark (Orphan X) About the Author Gregg Hurwitz is the New York Times bestselling author of thrillers, including Hellbent. Critically acclaimed, his novels have graced top ten lists and have been published in 22 languages. He is also a New York Times bestselling comic book writer, having penned stories for Marvel and DC. Additionally, he's written screenplays for or sold spec scripts to many of the major studios, and written, developed, and produced television for various networks. Gregg resides in Los Angeles.