Fourteen-year-old Haley is struggling to cope with her stepmom and baby brother, with her beloved cousin's terminal illness, and with dropping grades at school. When she digs deep into her family history for a school project, she uncovers a disturbing New England tradition and a ghostly past. Haley must overcome her doubts and confront a vampire in order to save herself and her family. Inspired by a true New England story, Mercy is accomplished children's author Sarah L. Thomson's first book for Islandport Press.