A Crash of Sea and Storm (These Bonded Souls Series #1)

Katla has everything she desires. Named a Victor for slaying her first dragon, she is content with the honorary festivities and congratulations, gifts and pride. Her success was never meant to attract an inescapable marriage contract with the King’s nephew, to force upon her a title she never sought to bear.
She sets off to carry out a deed so great, the honor to break the agreement will be undeniably hers. Whispers of a new sort of beast travel across the water, and her sword has never felt lighter. Her foe is clear. The only one who stands in the way of her freedom is the Dragon Rider, and every breath they still draw.
Aidan knows something has changed. Never before has the barbaric Sigurd Clan moved quite like this; with human captives, an influx of warships for their growing armada, imprisoned dragons and stolen scales. The Sigurd are preparing, and a noose has slipped around the Voluspian Isles. He is no longer enough to force it back.
A dragon waits at his back as a girl holds a blade to his throat, and they will find that worlds may need to converge, in order to save those from which they come.