The tag is Questions & Answers, and the genres are anything Mystery and anything Sci-Fi. (Books do not have to feature both genre types, or they may. It's a spectrum thing.) The dates for the promo are May 17 - 19 of 2019.
To see the site, visit doublecrosslit.com.
In 1953, Alfred Bester's The Demolished Man won the first Hugo award in science fiction, but at it's heart it was a howcatchem mystery novel. Dan Brown's recent Inferno is a detective story about a fictional genetically modified weapon at its heart. This promo explores science and all its mysteries, as well as the science of solving mysteries.
To join this promo, your book must be a novel, a novella, a collection of flash fiction or short stories at least three stories in length, or an anthology for which you are listed as curator or editor; and must be 99c/99p May 17 - 19 of 2019. It may also be a box set for which you are listed as author or author team, editor, or curator; and may cost up to $1.99 on the dates of the promo. By submitting a title, you agree to use your social media accounts and email list to promote the program. The book must be available on Amazon.com, but can also be available on other eBook platforms. This form closes at midnight M̶a̶y̶ ̶1̶0̶t̶h̶ May 12th, 2019 US Eastern time.
The form can be found here:
http://bit.ly/DCLQandA2019