The Merciful Crow by Margaret Owen [blog tour review] good, but only when someone got killed (ft. a giveaway)

I still have no idea what a Merciful Crow is. Is it a crow... that bestows mercy upon other people??? THEY NEVER FULLY EXPLAINED and just used it without giving proper context clues and I'm still just... confusion. When I was reading the first ~150 pages of this book, I was HARDCORE not liking it. …