The Spurned Heir

Layla Kellen was hated and spurned from birth.
She is the daughter of the most powerful and well known Alpha of the Shadow Pack, but then she was termed a demon.
Why?
Her birth caused the death of her mother through the most painful labour ever recorded.
Also, she was born with differently coloured eyes; Red and blue.
Everyone, including her father spurned her and she was treated like a slave. It all got worse when her father got a new Luna who gave him a son and daughter. It became worse when she found out her mate was the son of her father's greatest enemy.
Would he kill her or reject her instantly?
Layla was left in the realm of pain. No one knew the kind of hybrid she was.
All that was not known till the day her pack was almost entirely wiped out by the demon clan, shockingly headed by the new Luna, a demon I disguise.