Susanna Gregory was a police officer in Leeds before taking up an academic career. She has served as an environmental consultant, doing fieldwork with whales, seals and walruses during seventeen field seasons in the polar regions, and has taught comparative anatomy and biological anthropology. She is the creator of the Thomas Chaloner series of mysteries set in Restoration London as well as the Matthew Bartholomew books, and now lives in Wales with her husband, who is also a writer.