The competition is open to any writer aged eighteen or older who has never been the author of any published novel (in any genre), as defined by the guidelines on the website, and who is not under contract with a publisher for publication of a novel. Authors of self-published works may enter, as long as the manuscript submitted is not the self-published work. Only one manuscript entry is permitted per writer. Murder or another serious crime or crimes must be at the heart of the story. If a winner is selected, Minotaur Books will offer to enter into its standard form author’s agreement with the entrant for publication of the winning manuscript and receive an advance against future royalties of $10,000. The winner will be recognized at the Edgar Awards Banquet in New York City in April 2021. Submissions must be received by 11:59 pm EST on January 1, 2021.
See complete guidelines here: https://mysterywriters.org/about-mwa/st-martins/