After "asking" the fox people "gently" to serve under him, the first thing that Danzel went to do was to command hid undead to gather the supplies of the mine for them to take back to the Vashara village.
Afterward, he ordered his new, "willing" subordinates to start to explain to his undead how mining works. Be it where to find the ore for the certain metal they use, how to strike it, and further smaller details.
As he couldn't just tell his Draugr to bring him the ore from the mine, expecting his orders to be fulfilled.
He was sure they would try to fulfill his request, but that will result in them doing a trial-and-error process.
Till they found the right way with questionable efficiency, time would have been lost, which might result in his endeavor to walk to this mine kinda pointless.
As he was currently aiming to exterminate and drain the blood from the ice trolls while also gaining XP and exploring further the frozen lands that he was in.