Danielle Valentine , also known under the pen names of Danielle Rollins, Ellie Rollins, and Danielle Vega , is an American author. Her work, which includes The Merciless series, How to Survive Your Murder, and Delicate Condition, has been optioned for film and television by Lionsgate and Warner Bros and translated into languages worldwide. Danielle lives outside of New York City with her husband, daughter, and two ornery cats.