T.S. Pettibone is the pen name of identical twins, Brittany and Nicole Pettibone. They are the authors of Hatred Day, the first book in The Hatred Day Series. They were born in California on October 7, 1992, grew up in Kansas, and these days, live and write in California. On the rare occasion that they break from writing, they enjoy taking their dog on night walks, reading books by long deceased authors, drinking too much coffee and tea, traveling the world, making friends out of strangers and trying new things.