When librarians finally granted Kelley Armstrong an adult card, she made straight for the epic fantasy and horror shelves. She spent the rest of her childhood and teen years happily roaming fantastical and terrible worlds, and vowed that someday she'd write a story combining swords, sorcery, and the ravenous undead. That story began with the New York Times bestselling Sea of Shadows and continues with Empire of Night.

Armstrong's first works for teens were the New York Times bestselling Darkest Powers and Darkness Rising trilogies. She lives in rural Ontario with her husband, three children, and far too many pets.