<3 We never settled on how the possession worked, only that it was strongly invisible to people with respectable amounts of power like Kurama, so it wouldn't be any sort of stretch to say that Kurama's energy and Shiori's plea helped Botan break out momentarily. Though, the part where she breaks out after drowning herself, what exactly is it that allows Botan and Kurama to finally give her back control? It can't be too flashy, because Kurama running down those halls to the pool is going to attract attention, and eventually people will find them. Did Yoko use some of his demon energy to overwhelm the possessor, so Kurama transformed and tested that theory? I was actually going to search, but only after my next turn. I wasn't sure if it was a boy or girl that was behind the possession, so I held back.