User blog comment:Metadwarfosis/In anticipation of volume 11- Dwarven Kingdom and Expectations/@comment-5480911-20160624220547/@comment-5480911-20160625140448

Ainz knows about the floating castle..he said so in volume 4 of the novel as well as the manga...it is just too far away to reach it at this point and he cant spare resoruces.

you have the slane theocracy as wella s the elven kingdom to the south before you reach the pabilsags desert to reach it and even than it is at the center of the desert that is a lot of ground to cover...and he cant teleport to a location he has not been yet..give it some time..it will be reached sooner or later..but we have to focus on the parts of the continent we are at first.