C. Robert Cargill is the author of Sea of Rust, Dreams and Shadows, and Queen of the Dark Things. He has written for Ain't It Cool News for nearly a decade under the pseudonym Massawyrm, served as a staff writer for Film.com and Hollywood.com, and appeared as the animated character Carlyle on Spill.com. He is the screenwriter of Marvel's Doctor Strange, starring Benedict Cumberbatch, and cowriter of the horror films Sinister and Sinister 2. He lives with his wife in Austin, Texas.