Elfgift. Elfgift series, #1

Elfgift's father is the king but his mother was not the queen.       She was a beautiful elf-woman: pagan and not even human.      But the king, on his death-bed, leaves his kingdom to Elfgift, the 'elf's-get.'     From that moment, Elfgift's three royal half-brothers want him dead. Armed warriors arrive at Elfgift's farm while he is away, hunting. He returns to find his home burned and his people slaughtered.
Alone, he faces enemies who want his head. His only ally comes from the wood: Jarnseaxa, the Battle-woman, as Elvish as his mother. Can she help him gain revenge and a crown? Or is she as great a threat as his royal brothers?A Gothic, Dark-Age fantasy.