Fire Heart by Emma Hamm — book slip

Lorelei is a half-elf living in a kingdom where her bloodline is synonymous with slavery. The oppressive Umbra King holds the kingdom in fear with his dragon bodyguard, who is more than just a beast.

When a rebel group offers Lorelei a chance to infiltrate the king's bridal competition and assassinate him, she accepts. To succeed, she must prove herself beautiful, talented, poised, and deadly.

However, her growing connection with the dragon complicates her mission and threatens her heart.

For fans of Sarah J Maas and winged bad boys.