I really liked this - I was a bit worried by the references to her beautiful hair and dress (Mary Sue alert!) but you have captured the adolescent Bhaalspawn awakening to her nature in a way I think is clever and believable. More about the two girls bullying would help to flesh out her life. I like the explanation for how Sarevok knows to come for her and kills Gorion - he knows of her existence because he has seen her. But why is Gorion so mean to her? And why doesn't she rebel against him if this is the case? It would be really good if you could fix the grammar - it's hard to read stories without punctuation.
Good work.
Will it be stealing if I answer answer the question of how Sarevok knew about Gorion's ward in my Candlekeep story, by having him send an anonymous envoy to Candlekeep? I might just add a disclaimer.