User blog comment:Nomad27/Predictions of what will Occur in Volume 10./@comment-183.80.128.92-20151120071012/@comment-23.240.199.26-20151123092829

I believe it was mentioned that he turned off his counter-spells (trap spells that attack whoever was magically spying on him) so his guardians can observe the fight without repercussions but he also had another spell up that detects who is spying on him. Ainz was sure that nobody but the guardians from nazarick were watching. So the ST shouldn't have knowledge of that fight, though they may have deduced it as the work of ainz later on. I do like the idea that part of the ST starts worshipping ainz as a god, but I didn't know there was a death god among what they worshipped. I have the impression that the gods (players) that originally founded ST were humans and they hunted/disliked heteromorphic races.