Sci-Fi / Alien Dark Romance
Daggermouth (The Heart Duology Book 1)
Amazon Bestseller · #1 in Science Fiction Romance
Book 1 in the The Heart Duology series · Reading order →
SpiceDarkness
- Kindle, paperback & audiobook on Amazon
- Spice & darkness rated — content warnings listed below
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Why we recommend it
Sharp-edged and dangerous, this duology opener pits two hearts against a backdrop of peril and dark magic. Expect biting antagonism, morally grey players, and a slow-building attraction that cuts deep before it ever turns tender. For readers who love their fantasy romance laced with menace, their heroes lethal, and their love stories forged in conflict where trust is the most dangerous gamble of all.
At a glance
Daggermouth is a sci-fi romance by H. M. Wolfe. Spice 3/5, darkness 4/5 — mid-range for sci-fi romance. Among 403 rated sci-fi romance books, 47% are less dark and almost none less spicy. Tagged tropes include slow burn, enemies to lovers and alpha hero. 2 content warnings are listed below, hidden until you tap.
Book details
- Published
- March 2026
Daggermouth spice level
Daggermouth is rated 3/5 for spice on Readark’s scale: open door, meaning explicit scenes written plainly, but not the engine of the book. Its darkness rating is 4/5: heavy, meaning sustained cruelty, trauma or non-consent central to the relationship. How we rate
Daggermouth content warnings
We list 2 content warnings for this book. They stay hidden until you tap, so you can check without spoilers.
Content warnings (tap to reveal)
- Blood / Knife Play
- Graphic Violence
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