''Promise Not to Tell'' is a 2007

mystery novel Mystery is a fiction genre where the nature of an event, usually a murder or other crime, remains mysterious until the end of the story. Often within a closed circle of suspects, each suspect is usually provided with a credible motive and a reas ...

with

supernatural Supernatural refers to phenomena or entities that are beyond the laws of nature. The term is derived from Medieval Latin , from Latin (above, beyond, or outside of) + (nature) Though the corollary term "nature", has had multiple meanings si ...

elements written by

Vermont Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to ...

author Jennifer McMahon. The book was released in April 2007 in the US by Harper Paperbacks (an imprint of

HarperCollins HarperCollins Publishers LLC is one of the Big Five English-language publishing companies, alongside Penguin Random House, Simon & Schuster, Hachette, and Macmillan. The company is headquartered in New York City and is a subsidiary of News Cor ...

). It was released in Germany by

Rowohlt Verlag Rowohlt Verlag is a German publishing house based in Hamburg, with offices in Reinbek and Berlin. It has been part of the Georg von Holtzbrinck Group since 1982. The company was created in 1908 in Leipzig by Ernst Rowohlt. Divisions * Kinder * ...

, under the title ''Das Mädchen Im Wald'' (The Girl in the Woods), in October 2007. It was released in the United Kingdom by

Orion Books Orion Publishing Group Ltd. is a UK-based book publisher. It was founded in 1991 and acquired Weidenfeld & Nicolson the following year. The group has published numerous bestselling books by notable authors including Ian Rankin, Michael Connelly, ...

in 2008.

Plot

In 2002, Kate Cypher, a 41-year-old school nurse, returns home to her Vermont

hippie A hippie, also spelled hippy, especially in British English, is someone associated with the counterculture of the 1960s, originally a youth movement that began in the United States during the mid-1960s and spread to different countries around ...

commune A commune is an alternative term for an intentional community. Commune or comună or comune or other derivations may also refer to: Administrative-territorial entities * Commune (administrative division), a municipality or township ** Communes of ...

where she grew up to care for her aging mother, who is afflicted with

Alzheimer's disease Alzheimer's disease (AD) is a neurodegeneration, neurodegenerative disease that usually starts slowly and progressively worsens. It is the cause of 60–70% of cases of dementia. The most common early symptom is difficulty in short-term me ...

. Her first night home, a murder takes place behind her mother's cabin—the killing is identical to that of Kate's childhood friend, Del Griswold, who was murdered in 1971. Del was a scrappy outcast in life, shunned and taunted as "Potato Girl." Since her unsolved murder, Del had become something of a local legend, supposedly tormenting the townsfolk from beyond the grave. Kate never revealed her close relationship to Del, before or after her death, unable to stand up to those who pitied or reviled Del. Kate is drawn into the investigation of the modern-day crime, and must revisit Del's original murder, and her culpability in it. Along the way, she realizes that someone is playing games with her: leaving cryptic messages that tell her where to go. By following these clues, Kate re-meets many members of the hippie town she grew up in and relives some of the horrifying times during Del's murder. American mystery novels 2007 American novels Novels set in Vermont HarperCollins books Fiction set in 2002 {{2000s-mystery-novel-stub