Sheinmel, Alyssa: - Alyssa Sheinmel is the New York Times bestselling author of several novels for young adults, including The Castle School (for Troubled Girls), What Kind of Girl, A Danger to Herself and Others, and Faceless. Alyssa is the co-author of The Haunting of Sunshine Girl. Alyssa grew up in Northern California and New York, and attended Barnard College. She currently lives and writes in New York.