New York Times bestselling author Nancy Holder has written numerous Buffy and Angel tie-in novels, as well as co-authoring the first two Buffy Watcher’s Guides. A four-time winner of the Bram Stoker Award, she is the author of dozens of novels, short stories, and essays on writing and popular culture.

James Lovegrove is the New York Times best-selling author of The Age of Odin. He was short-listed for the Arthur C. Clarke Award in 1998 and for the John W. Campbell Memorial Award in 2004. He also reviews fiction for the Financial Times. He is the author of Sherlock Holmes: Gods of War, Sherlock Holmes: The Stuff of Nightmares, Sherlock Holmes: The Thinking Engine and Sherlock Holmes: The Labyrinth of Death for Titan Books.