I watch and listen as you tell of your big plans to find and explore the cave. I agree your plan has merit in going with the coming winter months when if lucky the Doctor will not remain there for that long cold season.
Just the thought of being with you causes my maleness to harden. The urge to join in nature once and for all serves me as a desire turned passion.
I apologize for my bestial like actions as the force within me in now more that the animal than the human I once was. Even with the thoughts of sexual pleasures and those feeling of relaxed grazing my body is even now hastening my final change.
Plans made, ready to go my friend I wish you well and the success in finding what few have found. I hope in your case that if you are discovered the Doctor sees fit to allow your mind at least to remain human. To have a rational thinking human mind held within the sensual body form of some beast would be to me the greatest of delights.
We shake hands and off you go to find what I and my cow have found!