Mercy lost.

Mary has nothing left to protect. Her kingdom crowned a false goddess. The sister she fought through damnation to save is beyond any wish's reach. And Azel, her guardian, her anchor, the one soul who never left by choice. Is gone. No word. No trace. Only silence where he swore he would always be.

Only one being remains at Mary's side. Valerio, and he has waited a long time for this. The demon lord who once watched her break for amusement now teaches her to hold a blade, and under his hands, her grief is sharpening into something the trials never planned for.

The trials spent two books testing whether Mary could stay good. This is what happens when she stops trying.

For fans of Nevernight, Kingdom of the Wicked, and The Knight and the Moth: a dark fantasy series with deadly trials, morally complex characters, and a devastating slow-burn love story that spans four books. No spice, no explicit content. Just obsession, tension, and devotion sharp enough to cut.

Tropes and themes:

• A good soul choosing wrath, one loss at a time
• A guardian angel who vanished
• A demon whose devotion feels like salvation and works like a snare
• Trained by the most dangerous being in damnation
• A bargain with a trickster who knows too much
• The slow burn bends toward the wrong pair of arms