Blade of Demons by Sara C. Roethle — book slip

Lyssandra, a hunter of the Helius Order, finds herself torn between her duty and her growing attraction to Asher, a vampire.

When another ancient is murdered, Lyssandra must defy the Potentate's orders to aid Asher, unraveling a mystery involving mysterious shadows and roaming ghouls.

As they delve deeper into the investigation, the tension between them grows, challenging Lyssandra's loyalties and her desire for a life free from the vampire's bond.

For fans of dark fantasy romance with a slow-burn, enemies-to-lovers dynamic.