Heather Terrell is the author of The Chrysalis , The Map Thief , and Brigid of Kildare . Before she started writing, she worked as a lawyer, and she has more than ten years' experience as a litigator at two of the country's premier law firms and for Fortune 500 companies. A graduate of Boston College and Boston University School of Law, she now lives in Pittsburgh with her family. Fallen Angel is her first novel for young adults.Joann Davis is the author of The Book of the Shepherd . She is married to the historian Kenneth C. Davis. Together, they have two grown children,� Jenny and�Colin, and live in New York City and Dorset, Vermont.