C813 Sky-viewing Mirror
Although these non-humankind elders were used to using their power to push others around, that didn't mean that they were brainless brutes. At critical moments, every one of them was as crafty as a ghost.
He was able to deduce everything based on a vague clue.
If there really was only one clone, they would have to carefully consider whether they should continue wading in this muddy water