I see no problem with that. Remember to involve fishing or other aquatic activities. All of House Cowan's pledged houses are either on the San Dominguez Islands or the coast of Arrendal.
Would you mind sending me links to the Rift, Abyss and Storm you mention in your post. I just did some research of my own but want to make sure I was looking at the right things. Cause, if I was, then your character misconstrued them. Of course that could be intentional or, again, I could be reading the wrong things... :/
No probs!
And the one I added at the end of Tuwan's profile after you read it.
Just that no one knows who she is, her last name (she's not in any archives, her species (as knowing that she 'is' an extinct species is unlikely), her lineage or her history and no one will for a while. Probably for as long as I have the character.