Question: What year was the book released that was based on the 1873 murders on one of the Isles of Shoals in Maine?

full_context: Document 1: A Yellow Raft in Blue Water: A Yellow Raft in Blue Water is the debut novel of author Michael Dorris, published in 1987. It tells the story of three generations of Native American women: Rayona, who is half African-American, her mother Christine, and Christine's mother Aunt Ida. The story is told in three distinct sections, one for each woman. Throughout the book, themes of family, identity, and heritage are highlighted and examined.
Document 2: Kittery Point, Maine: Kittery Point is a census-designated place (CDP) in the town of Kittery, York County, Maine, United States. First settled in 1623, Kittery Point traces its history to the first seafarers who colonized the shore of what became Massachusetts Bay Colony and later the State of Maine. Located beside the Atlantic Ocean, it is home to Fort McClary State Historic Site, and Fort Foster Park on Gerrish Island. Cutts Island is home to Seapoint Beach and the Brave Boat Harbor Division of the Rachel Carson National Wildlife Refuge.
Document 3: Sea Glass: Sea Glass is a 2002 romance novel by Anita Shreve. It is chronologically the second novel in Shreve's informal trilogy to be set in a large beach house on the New Hampshire coast that used to be a convent. It is preceded by "Fortune's Rocks" and followed by "The Pilot's Wife".
Document 4: Shoals Marine Laboratory: Shoals Marine Laboratory (SML) is a seasonal marine field station located on Appledore Island, Maine, in the United States. Appledore Island is the largest of the Isles of Shoals archipelago, a group of rocky islands just offshore of the coastline of Maine and New Hampshire. The laboratory is cooperatively operated and maintained by Cornell University and the University of New Hampshire. Shoals is a residential facility where participants and staff live together in a close-knit learning community. SML's academic program runs from May through August to accommodate off-campus study for undergraduates. Limited access for research can be arranged during the off-season. Access to Appledore Island is provided by Shoals Marine Laboratory vessels operated by laboratory personnel. SML administrative offices are at Cornell University in Ithaca, New York, in Portsmouth, New Hampshire, and at the University of New Hampshire in Durham, New Hampshire.
Document 5: Star Island (New Hampshire): Star Island is one of the Isles of Shoals that straddle the border between New Hampshire and Maine, approximately 7 mi from the mainland in the Atlantic Ocean. At 38 acre , Star Island is the largest of the four islands that are located in New Hampshire and second largest overall, after Appledore Island. The island was supposedly assigned its name by sailors who imagined the shape of the island as the points of a shining star. Originally known by the local "Shoalers" as the town of Gosport, in 1876 the island was annexed to the town of Rye.
Document 6: The Pilot's Wife: The Pilot's Wife : A Novel is a 1998 novel by Anita Shreve. It is chronologically the third novel in Shreve's informal trilogy to be set in a large beach house on the New Hampshire coast that used to be a convent. It is preceded by "Fortune's Rocks" and "Sea Glass".
Document 7: Fortune's Rocks (novel): Fortune's Rocks is a 1999 romance novel by bestselling author Anita Shreve. It is chronologically the first novel in Shreve's tetralogy to be set in a large beach house on the New Hampshire coast that used to be a convent. It is followed by "Sea Glass", "The Pilot's Wife" and "Body Surfing".
Document 8: Moose Island, Maine: Moose Island is an island in Eastport, Maine located at the entrance to Cobscook Bay from Passamaquoddy Bay in the Bay of Fundy. It is part of Shackford Head State Park.
Document 9: Smuttynose Island: Smuttynose Island (formerly "Smutty-nose") is one of the Isles of Shoals, located 6 mi off the coast of New Hampshire, but actually in the state of Maine, in the United States. It is part of the town of Kittery, in York County. It was named by fishermen, seeing the island at sea level and noticing how the profuse seaweed at one end looked like the "smutty nose" of some vast sea animal.
Document 10: The Weight of Water (film): The Weight of Water is a 2000 French-American mystery thriller film based on Anita Shreve's 1997 novel of the same name. Directed by Kathryn Bigelow, the film stars Elizabeth Hurley, Catherine McCormack, Sean Penn, and Sarah Polley. The film was shot in Nova Scotia. Although it premiered at the 2000 Toronto International Film Festival, it was not released in the United States until November 1, 2002.
Document 11: Seacoast Region (New Hampshire): The Seacoast Region is the southeast area of the U.S. state of New Hampshire that includes the eastern portion of Rockingham County and the southern portion of Strafford County. The region stretches 13 mi along the Atlantic Ocean from New Hampshire's border with Salisbury, Massachusetts to the Piscataqua River and New Hampshire's border with Kittery, Maine. The shoreline is generally very rocky and rough in nature, although a few sandy beaches have been created using jetties/groins, particularly in the towns of Rye and Hampton. The Seacoast Region stretches as far west as Epping. Portsmouth, the largest municipality and only city in Rockingham County, serves as the cultural and commercial hub of the region. Portsmouth has numerous historical landmarks and tourist attractions including Strawberry Banke, the Moffatt-Ladd House, the John Paul Jones House, and the Portsmouth Children's Museum, which moved to Dover in 2010. The Seacoast Region was the first area of the state to be permanently settled by Europeans in the early 17th century.
Document 12: The New York Times Fiction Best Sellers of 2017: This is a list of adult fiction books that topped "The New York Times" Fiction Best Seller list in 2017, in the Combined Print & E-Book Fiction category. So far, the most frequent weekly best seller of the year is "Camino Island" by John Grisham with 5 weeks at the top of the list, followed by "The Shack" by William P. Young with 4 weeks.
Document 13: Anita Shreve: Anita Shreve (born 1946) is an American writer. The daughter of an airline pilot and a homemaker, she graduated from Dedham High School in Massachusetts, attended Tufts University and began writing while working as a high school teacher in Reading, Massachusetts. One of her first published stories, "Past the Island, Drifting", (published in 1975) was awarded an O. Henry Prize in 1976.
Document 14: The Weight of Water: The Weight of Water is a 1997 bestselling novel by Anita Shreve. Half of the novel is historical fiction based on the Smuttynose Island murders, which took place in 1873.
Document 15: Chebeague Island, Maine: Chebeague Island is an island town in Cumberland County, Maine, United States, located in Casco Bay, 10 mi from Portland. These islands are sometimes referred to as an older, now archaic term "The Calendar Islands" because there was once a belief that the approximate number of islands was 365. The actual number is fewer than two hundred. Great Chebeague was a part of the town of Cumberland until July 1, 2007, when it became the town of Chebeague Island. As of the 2010 census, the town had a population of 341.
ground_truth: 1997