Re: [Later, after the Old Man]
We have a lot of keystones, a sword to kill them, and the location of King's. When he summons us for this dance-- which we know he intends to kill us in. Some of us will go in cloaked. People cloaked that can fly will go for King's keystone, and others will hide what keystones we have.
Once we have King's keystone, we'll all reveal what we have out of nowhere, and immediately pass them to different people and have them disappear. Messenger is going to challenge him for ascension to the throne, and in the meantime we'll have him hostage. We can make demands, or end it right there, and we know it's possible to channel his power once we have his stone.