That was three vampires too many I think. There was something about the pace, and the ending, that made the story less satisfying than previous offerings.
“He thought of their previous adventures - or nightmares, as Johnathan privately thought of them… He might have considered writing them down, but his handwriting was terrible and besides, no one wanted to read stories about vampires.”
Moments of levity still made it worth the time. Another two or three sentences at the end, or one sentence of foreshadow, could have added a star.
Read it for yourself: https://www.tor.com/2022/02/16/seven-vampires-a-judge-dee-mystery-lavie-tidhar/