From YA to erotica.

From PW:

Bestselling YA author Andrea Cremer has agreed to do an adult erotic trilogy for Dutton. The author, who is best known for her popular Nightshade series (which Penguin’s Philomel imprint publishes), sold world rights to three books that will be set within the Nightshade world. ... The first book in the series—Dutton said it’s about “the lives, passions, and betrayals of lovers whose very desires invite their dooms”—is scheduled for October 2013.