And They All Bow Down by Nicki Chapelway

A dragon-taming shieldmaiden and a praetor’s son; one cursed to die, one to live forever… Enemies bound together in marriage and in their shared quest to change fate.

Laduga Scaleborn is a shieldmaiden and a dragon-tamer, who has spent her life fleeing from her destiny to become a seer like her mother. But she cannot escape the visions of her own death.

When she tries to accomplish a rite of passage by killing an enemy Imperial scout, she blacks out only to come to with a mark of death etched into her skin. Her fate, it seems, is now tied to that of the Imperial, a praetor’s son named Marcello Placidus. Laduga has been claimed for death, which will come for her in a fortnight’s time; and Marcello is the boy that death abandoned.