Negligence

"On the other side of the desert, there is a realm of the undead that are adapted to the desert. The black skeletons seem to be getting closer and closer to the desert, so I'll ask them to send search parties to go after them."

"But master, they would have to search the entire desert to find the skeletons. Don't you think it's a bit absurd to ask them to find the skeletons?" Valko asked doubtfully, but Illum just smiled mysteriously at him.

"I'll fix it. Just make sure you come back in one piece." Illum spoke mysteriously and by the look in his eyes, Valko knew he wouldn't take any more questions.

'I can't tell him that the undead realm already dominates the entire Southeast. It would be problematic if this information leaked out to the human realms and the order and church decided to act. It's geographically impossible for them to do anything, but I'd rather not take the risk.' Illum thought.