The Demon comeback

After ten years, he woke up from a deep sleep. He wanted his demonic power back, the power he conserved in a four year old girl but the small girl that's now a teenager refuses to give the power back to him. The bad news is he can not get his power back without the consent of the teenager. Rowland did everything he could to get back his power but Arya was adamant. Rowland decided to get help from another demon,a demon is very powerful compared Rowland. Can Rowland get his power again with the help of the powerful Demon or he will fail again ?