User blog comment:Metadwarfosis/In anticipation of volume 11- Dwarven Kingdom and Expectations/@comment-4875206-20160621235332/@comment-27168967-20160623123352

I wouldn't dismiss the idea of sending Momon that easily since vol 10 has already hinted that they might want to send Momon on some long term campaign just so the people can build up more trust towards Ainz. The Dwarven Kingdom is the perfect destination for such a little trip. Also, he's there to try and acquire information, not search and destroy. If the previous little preview back in vol 09 was any indication, he's also there to set up a trade route.

Even if he did go with Shalltear and Aura, we don't know if they'll be accompanying him all the way or keep a distance between themselves. Explaining Aura might not be too hard if he's just Momon, claiming that they met on the way and the like since as an Adamantite he's been around. Shalltear's the problem actually. Momon's known to slay one of her "kind"... unless he BS his way with his usual antics. Probably claims that she gave up after knowing Momon killed her other half and decided to join him who now serves a more powerful Ainz Ooal Gown. Then again, there's that illusion magic used to hide his identity. If that can be used on another then the appearance shouldn't be too much of a problem unless Brain somehow ended up drunk in a tavern they ended staying in.