Spoilers for whole book and FORAW

Hear me out. We know Eloana had a brother called Hawkethrone but we never met him as apparently he died. Cas's middle nas is Hawkethrone. Move the letter R and you get HAWKETHORNE

What if Eloana is actually Thorne's sister?! He had two 'siblings' created at the same time as him as per FORAW, a brother and a sister, but he never mentions their names. We know nothing else about Eloana, apart from being married to Malec.