"Ancient" depends on who's timeline you're working on. [She sighs, and shakes her head.]

Certainly, the Empire has a history of warring with them...but there used to be another kingdom between them and the sea. I believe it's when that king began kidnapping baby dragons to experiment on them in hopes of attaining their immortality that the survivors made the seas impassible.

[She pauses.] I can't really say I blame them.