Every so often a book comes along that makes you stop and ask what, exactly, you are rooting for — and then keeps you rooting anyway. Leather & Lark, Brynne Weaver’s follow-up to her viral hit Butcher & Blackbird, is one of those books. It is a marriage-of-convenience story between two people whose actual professions would, in any other genre, make them the villains. Here, they are the whole point.
The premise sounds like a dare: two assassins, paired together for reasons that start out practical and become something else entirely, navigate a relationship that runs on banter, competence, and an unsettling amount of tenderness. Weaver writes with a wink — this is a book that knows exactly how absurd its own setup is, and leans into that absurdity rather than apologizing for it. The result is something readers keep describing as “unhinged” in the most affectionate way possible. One half of the pair has earned a nickname for her particular brand of chaos that has become genuinely beloved online — the kind of detail that tells you a character has escaped the page and become a person readers talk about like a friend.
What makes this work — what keeps it from being shock value dressed up as romance — is that the danger is never really the point. The point is devotion. These are two people who have spent their lives being the most competent, most controlled person in any room, and the romance is built on what happens when that control meets someone who doesn’t require it. Being terrifying to the rest of the world and completely undone by one specific person is one of romance’s oldest tricks, and Weaver’s version of it works because she commits fully — there is no halfway version of “morally gray” here, and the book doesn’t pretend there is.
There is a particular kind of comfort in a love story where the characters have already seen the worst of each other and chosen to stay anyway. Most romance asks “will they fall in love.” This book has already answered that question by the time it starts, and instead asks something more interesting: now that they’re in it, what does it cost to keep choosing each other, every day, on purpose? Readers have latched onto a specific line about love being a choice rather than a feeling — and that’s the actual emotional core under all the chaos. The banter is the show. The choosing is the substance.
It’s worth saying plainly: this book is not for everyone, and it knows it. There’s a scene readers warn each other about before they get to it — the kind of moment that becomes a shared joke among fans precisely because it’s so far outside what romance “usually” does. If you’re the kind of reader who wants your morally gray heroes to stay metaphorically gray, this might be too far. But if you’ve ever wanted a romance that genuinely commits to “this person is dangerous and I love them anyway” without softening it into something safer — this delivers that completely, and with more humor than you’d expect.
That tension — between how dangerous someone is and how safe they make you feel — isn’t new to the genre, even if Weaver’s version of it is more literal than most. TRN readers who want to sit with that same contradiction in a different register might enjoy Dark Lover by J.R. Ward — a hero built for violence who finds, almost against his own will, something worth being gentle for. Different world, same engine: the monster who chooses to protect rather than destroy, and the person who sees that choice for what it is.
Books like Leather & Lark get talked about because they’re fun — but underneath the fun is something most of us recognize. We don’t actually want our partners to be harmless. We want them to be capable of anything, and choose us anyway. That’s the fantasy this book sells, with a wink and a body count, and it’s selling it very, very well right now.