Several days had passed since their escape from the clutches of the Grey Sands Elves. After determining where he was going, Wei Wuyin and the others walked by foot. He soon realized that no one flew in The Desolate Lands, and Seekers operated within a certain range from wherever they were sent via Void Gates.
According to Chu Leitao, each city in The Desolate Lands had a functioning Void Gate established within, but they only allowed departures and no entries. If one wanted to travel to that city or another, they had to portal to a location away or a specifically designated destination platform that would be protected by the forces of the nearest city.
These destination platforms were protected by formations and arrays and guarded by experts. They were extremely suitable to ensure safe arrivals and lack of conflict. If one used random coordinates in their portals, they might be captured by Grey Sand Elves immediately from bad luck.