They remember the first time that they saw this kind of chain. It was during their first meeting with the primogenitor of the void universe.
The chains with the three runes had been binding the primogenitor of the void universe. The same was the case here. The chains with the three runes were also binding the giant black bird. There were even the special spikes nailing the chains across what was left of the giant bird.
As they got closer and closer to the bound and incomplete giant bird, they were able to see more details that reminded them of their past, or to be exact, their future meeting with the primogenitor of the void universe.
What they saw made all of Legion become silent as they focused on digesting everything that they were seeing and experiencing. Their thoughts hadn't slowed down as they had during the meeting with the primogenitor of the void universe, but their mental prowess still felt inadequate in their quest to understand what was going on.
