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

Context paragraphs:
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.

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.

Islesford, Maine: Islesford is a small hamlet located on Little Cranberry Island in Hancock County, Maine, United States.  It is one of the five islands of the town of Cranberry Isles, Maine.  It lies in the Atlantic Ocean southeast of Mount Desert Island, which is the site of Acadia National Park.  In 2013 the year round population was about sixty-five.

The Invention of Nature: The Invention of Nature: Alexander von Humboldt's New World is a nonfiction book released in 2015, by the historian Andrea Wulf about the Prussian naturalist, explorer and geographer Alexander von Humboldt.  The book follows Humboldt from his early childhood and travels through Europe as a young man to his journey through Latin America and his return to Europe.  Wulf makes the case that Humboldt synthesized knowledge from many different fields to form a vision of nature as one interconnected system, that would go on to influence scientists, activists and the public.

List of prolific writers: Some writers have had prolific careers with hundreds of their works being published.  While some best-selling authors have written a small number of books that have sold millions of copies, others have had lengthy careers and maintained a high level of output year after year.  Dame Agatha Christie, the most-published novelist in history, is estimated to have sold 4 billion books, having written 69 novels and 19 plays.  Her works were published between 1920 and 1976, equating to around three publications every two years.  Dame Barbara Cartland has also sold millions of copies of her books but wrote many more than Christie.  She spent 80 years as a novelist with 722 books published, averaging one book released every 40 days of her career.  While Cartland wrote a significant number of full-length novels, other authors have been published many more times but have specialised in short stories.  Spanish author Corín Tellado wrote over 5,000 novellas, selling 400 million copies of her books.

The Professor and the Madman (film): The Professor and the Madman is an upcoming American-Irish drama film, based on the book "The Surgeon of Crowthorne" by Simon Winchester.  The film's title is taken from the edition of the book released in the U.S. and Canada.

Tiffany Mitchell: Tiffany Dawn Mitchell (also Raymond) was a fictional character from the BBC soap opera "EastEnders", played by Martine McCutcheon from 1995 until 1998.  The character was created by the writer, Tony Jordan.  She was introduced as a school friend of Bianca Jackson and became a prominent and popular character during her tenure due to a combustible relationship with the soap's landlord, Grant Mitchell.  McCutcheon quit the role in 1998 in order to pursue a musical career.  Producers made the controversial decision to kill the character off, an act that McCutcheon publicly criticised as she had hoped to return at some stage.  A book released in 1998, documenting Tiffany's time in the soap, was a number one bestseller.

The Great Dinosaur Robbery: The Great Dinosaur Robbery is a now out-of-print book released in 1970 and written by David Eliades and Robert Forrest Webb under the pseudonym of David Forrest.  The book was later the basis for the 1975 film "One of Our Dinosaurs Is Missing".

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.

Shouting out to the World!: Shouting out to the World! : A Run for the Dream, Bigbang's 13,140 Days Challenge is a book released by South Korean group, BIGBANG, on January 28, 2009.  The book is actually more a book about self-development than one that is of Bigbang’s autobiography.  It's a story about 5 teenagers achieving their dreams.  Each member tell the story of their own journey & growth as they pursued their dreams.  They also tell their feelings after realizing their dreams and their thought about what comes afterwards.

Supporting paragraphs: The Weight of Water Smuttynose Island
Answer: 1997