Every Time I Go on Vacation, Someone Dies by Catherine Mack

10 years ago, Eleanor Dash wrote a bestselling mystery novel. That would be great for many people, but hers came with some drawbacks. First, being an author was her sister's dream; Harper is now Eleanor's assistant. Second, she based her detective on a real man, Connor Smith (used his name and everything), and the story is based on a mystery they solved together. But he's blackmailing her with... something.
In true first-person-narrator mystery fashion, our author may not be telling us the unvarnished truth. Some of it may be lies she's telling us, others may be lies she's telling herself. Either way, she's on a tour celebrating the anniversary with her sister, Connor, his ex-wife (also an author, a biography based on living with Connor), a TikTok influencer who wrote a book stunningly similar to Eleanor's, Connor's ex-partner from their detective agency (who also wrote a book about Connor), Connor's latest fling, and Shek, an author whose book sales are waning. Oh, and there are the paying guests, a BookFace group, including Eleanor's stalker, and a tour guide who doesn't seem to know what she's talking about.
Connor is convinced that someone is trying to kill him, but he's not the one who dies.

Four stars

This book comes out April 30, 2024

The Vacation Mysteries #1

Followed by No One Was Supposed to Die at This Wedding

ARC kindly provided by Minotaur Books and Edelweiss

Opinions are my own