Eh?? I swear I did read through 90% of the posts before submitting...
Oh but I forgot one part:

Sirens were not just beautiful airheaded bimbos. In fact, they were very wise, and could look into the future or the past.
(if you think that is OP, remember that sirens are extinct, and the only one (so far) with some siren blood (my character) only inherits good looks, vanity, a working brain and a good singing voice.