User blog comment:Nekokokokoko/Slane Theocracy's awareness of Ainz/@comment-26501532-20150920141320/@comment-203.127.87.2-20150922125418

@Zach-san

Those are actually good points. I was always wondering why did ST sent their Black Scripture in the first place. But it's possible that they believe it was Shalltear who wipe out the Sunlight Scripture or countered their spying magic as well since they only encounter her while they were there.

In the Intermission of Vol. 4, if they still think it was Ainz they would have at least mention him but they only talk about Shalltear. Which mean they could have completely dismissed him up until Vol. 9.