I have been searching around on fanfic.net and been combing through my favorites here, and I still cannot find this one story. I cannot remember the title or the author.
The story was phenomenal and I wish to continue it. Kagome is technically killed, fused with a hell hound, then brought back as a youkai. Sesshoumaru is told by a feline Kami that he has to guide Kagome in her new life. She is stuck in dog form for a while until she finally gains a humanoid form again, right before falling into a volcano and realizing that lava cannot harm her. I remember her calling Sesshoumaru "Ouji-sama" or something to that affect. If anyone knows which fic I am refering to, could someone please give me the title? If you think you might know it but need a few more details, feel free to ask.