A Song of a Deranged Lion

When a Lion has flashes of a life that was not his own and gained magical ability that he could not explain along with demonic voices and hallucination to boot, one can hardly stay calm and composed. Kalan Lannister, bastard son of Tywin Lannister, has finally come of age. His roar will shake the world. But before he could do that, he has to regain the control of his mind. AU? R&R.