They definitely won't part with them easily. It will probably require finding one of the changed nurses at night and defeating them, which will be a difficult task on at least two fronts. That is, of course, assuming they'd have the keys we're looking for... this will most likely be a venture that will take some time to see to completion. But if the reward is a return to ourselves, then...

I think many of us that have been changed are in similiar situations, in that physical combat is not... our forte in these bodies. I know I am not much for fighting myself in my current form. But there may be others that aren't so affected by this change. I have some human allies that could be useful in this area...