I Didn't Do It by Jaime Lynn Hendricks; 2023. Hardcover.

Murderpalooza, the premier thriller writers conference, is meant to be an exciting celebration of the genre and its preeminent writers. But when bestselling author and industry favorite Kristin Bailey is found dead in her hotel room, four rival authors―a midlister, an egomaniac, a has-been, and a newbie―also get targeted by an anonymous social media account and wonder if they’re next.

First, they find themselves bonding to try to find out who’s behind it. As the account taunts them, it slowly reveals secrets that each of them have connected to Kristin―secrets that make them a suspect in each other’s eyes. Soon, they are turning on each other and silently accusing each as a killer. With time running out until the awards ceremony where the social media account has promised a big reveal, the only thing they know for sure is that no one is better at both creating and solving a mystery than the people who write them for a living.