From the New York Times bestselling author of I Was Anastasia and Code Name Hélène comes a gripping historical mystery inspired by the life and diary of Martha Ballard, a renowned 18th-century midwife who defied the legal system and wrote herself into American history. Maine, 1789: When the Kennebec River freezes, entombing a man in the ice, Martha Ballard is summoned to examine the body and determine cause of death.