Into the Dawn by Laurie Roma

Princes Ronan and Dominic Karos have been living in darkness since the loss of their brother and their chosen mate. They thought their dream of finding true happiness was over, but fate has another plan in store for them. They have one chance to save the female destined to be theirs, but the journey will take them across the stars and into the unknown.
And time is running out to save her…
Kylie Bell is dying, but that doesn’t mean she’s ready to go down without a fight. So, when two alien dragon shifters arrive on her doorstep promising her a second chance, she is more than ready to take them up on their offer. However, forging a new life with her two sexy princes back on their home world isn’t as easy as it seems.

As they emerge from the shadows into the dawn, they must work together to defeat the forces seeking to tear them apart, or risk losing everything they hold dear.