is the pseudonym for bestselling authors Elle Kennedy and Jen Frederick. The first two novels in Erin Watt's self-published contemporary YA novels in the Royals trilogy–and –each debuted at #1 on the Young Adult ebook list, and book 3, , debuted on the YA series list. Combined, the series has spent more than 26 weeks on thebestseller list. Individually, Elle Kennedy is the bestselling author of the self-published New Adult series, as well as the Killer Instincts romantic suspense series for Berkley and Jen Frederick is the bestselling author of author of the and self-published New Adult series and coauthor of the romantic suspense series for Berkley.