Okay. There aren’t really bloodstains on Catriona McPherson’s mystery Dandy Gilver and the Proper Treatment of Bloodstains—but I’m a sucker for alliteration (and you clicked on the link, didn’t you?). From The Independent’s review:
. . . Catriona McPherson’s novel . . . appears to be firmly in the cosy camp – but is it? The Dandy Gilver series demonstrates the author’s faultless assimilation of this idiom. A genteel note is sounded throughout, with the middle-class Dandy, an amateur female sleuth in the 1920s, solving knotty mysteries. But there’s a subtle detonation of the cosy genre, as the books soothe the reader while clandestinely taking on more serious concerns.
Subtle detonation? I don’t know enough about the genre to assess such claims. Good cover though. Bloodstains is new in the US from Minotaur.