The Cause

Alex agreed with Emily's idea; he absorbed the same amount of water, and then they started walking back while their eyes were locked on the oasis. It looks like the popular dance move, the moonwalk.

One step, two steps, after twenty steps away, the water still had not recovered. They then tried to move way further, but no change.

This made everyone frown; they looked at each other, and then, with a nod, everyone turned their gaze away. 

At that exact time, the water started filling up again. Everyone was sure this was not a coincidence. 

'Vesa, did you not detect any energy?'

[I can only detect mana, qi, and life force, for now, King. I will need to get information on other types of energy and a sample of it first.] 

[Otherwise, I cannot detect the energy spectrum.]

"Energy spectrum? What is that, Vesa?"