I'm looking for specific Inuyasha fanfic: Kagome has healing powers and heals Miroku for Inuyasha...?

Kagome is married to Kouga and they live in Naraku's castle. She is a healer taking care of her mistress. Inuyasha invades the lands and Miroku gets hurt so Naraku sends Kagome to him to heal Miroku. Kagome then agrees to take them to a treasure on her home island which has an unknown location except for her. I know that she found out about her healing powers my healing a wolf cub she named Shippo and that in the last few chapters the reader finds out she is a decendent of Merlin. Please help! I cannot remember the name of the fanfiction or where I read it! Thankyou!