Sam Spade is the protagonist of Dashiell Hammett's 1930 novel “The Maltese Falcon.” The fictional detective was closely associated with actor Humphrey Bogart, who played Spade in the best-known film version of the book. Associated Press file photo

NEW YORK — The story of one of the great fictional sleuths, Dashiell Hammett's Sam Spade, will be continued by prize-winning crime writer Max Allan Collins.

The publisher Hard Case Crime announced Thursday that Collins' “The Return of the Maltese Falcon” will be released in January 2026, when the Hammett classic featuring Spade, “The Maltese Falcon,” enters the public domain. “The Maltese Falcon,” published in 1930 and known to movie fans for the 1941 adaptation starring Humphrey Bogart, is widely regarded as a model for the hard-boiled detective novel.

“It has been an inspiration to authors and filmmakers, actors and illustrators and musicians — and to me, for the entire 50-plus years I’ve been a novelist,” Collins said in a statement. “Not that writing about the world Hammett created, and those immortal, sometimes immoral characters isn’t challenging — Hammett’s best mystery also happens to be one of the greatest American novels, period.”

When copyright protection ends for a book, anyone is free to use the characters and story line. After F. Scott Fitzgerald's “The Great Gatsby” entered the public domain, in 2021, new creations included a Tony-winning musical of the same name and a prequel novel, “Nick,” by Michael Farris Smith.

According to Hard Case Crime, Collins’ new book will bring back Spade and Joel Cairo among other Hammett characters, and “a mysterious new femme fatale.” Collins, whose “Road to Perdition” was adapted into a film starring Tom Hanks and Paul Newman, has a long history of working with famous literary detectives. He took over the Dick Tracy comic strip in the late 1970s after creator Chester Gould retired, and he was later authorized to continue Mickey Spillane's Mike Hammer series.

“I’m something of an old hand at walking in the shoes of the giants who came before, though I never claim to filling them,” Collins told The Associated Press.

Various authorized Spade projects have been released, including a 2009 prequel, Joe Gores' “Spade & Archer,” a novel about Spade and his professional partner, Miles Archer. Spade was featured this year in an AMC miniseries, “Monsieur Spade,” starring Clive Owen in a sequel that finds the detective retired and living in the South of France.