Perri O'Shaughnessy

Perri O'Shaughnessy is the joint pen name of sisters Pamela and Mary O'Shaughnessy. Together they are the authors of the Nina Reilly legal-thriller series, a standalone thriller (Keeper of the Keys), and a short-story collection (Sinister Shorts). Pamela is a Harvard Law School graduate who practiced law for many years; Mary worked as an editor and writer for multimedia projects. The sisters grew up in Southern California and have lived in California; several of their novels have appeared on national bestseller lists.