Excerpt from Kayde's Notes

That gnoll woman, on her shoosuva, started to absorb the lifeforce of all the entities in that summoning circle… and when all was said and done, a blighted crater was all that was left. That was the last we saw of that woman, whoever she was. I have a deep sense of dread recalling this. Nothing involving demons ever goes well for anyone involved, besides the demons. Whether it falls to us, or some other group, she must not be allowed to gain any more power.