The 9 of them communicated amongst themselves and decided on a scapegoat. They have been threatened. And if they know ancestor Hadrick enough, which they do, they know that it will make do with the threat. They don't want their secrets to reach the ears of some of their immortal enemies. They will literally never hear the end of it.
If ancestor Hadrick, who hasn't left the plane ever, can threaten them with their embarrassing secrets after all these years, it will only get bad when someone that can move around the void universe gets a hold of it.
They pointed to one of them and said, "We were laughing because we remembered the time Densilki sat on a spike instead of a chair."