The precursor to Cry Wolf (though honestly, I wish it had been the first few chapters).
I liked it, liked all the magic-y stuff, but I have started to side-eye the reliance on a particular triggery female character trope as a plot element. I didn't feel it was handled well with Mercy, and I don't feel it's handled well with yet another character in the series. I'll read the first book, but I'm going into it grumpily as a result.