C116 You Two Idiots

The Demonic Wind Pillar swept Yu Kun and his companions all the way to the Cold Moon Mountain Range. It wasn't until they had ventured fifty miles in that the pillar's energy began to wane.

Yu Kun was aware that the Demonic Wind Pillar should have been able to reach seventy miles into the range. But since he had absorbed some of its power, it only managed to penetrate fifty miles