Skolas, leader of house wolves, self proclaimed kell of kells. Battle of twilight gap he was somehow prevented from being at with all the other fallen by Mara Sov as per Petra. However, the silent fang remained on the loose, and evidently got their hands on powerful technology to be able to get Skolas away from the nine, beings who are supposedly very powerful. Additionally, lore says the vault of glass technology existed at any point in time, but only in the geographic area of the vault. Skolas was somehow able to remove the time warping platform tech from the vault. Evidently he has some unknown power. Therefore, how was Mara Sov able to stop him from being in the battle of twilight gap. We don't know. Anyways, I digress. Silent fang could have scavenged the battlefield easily after Twilight Gap.