Y's speed helped us reach the stratosphere extremely fast.
I was a bit hesitant about this because the higher I get the less oxygen I'll be getting. But all my worries were unfounded. Apparently, the moment you become a cultivator, you transcend physic laws.
Something like suffocating from being in outer space is not a possibility as long as you have Qi in you. Breathing is nothing but a habitual motion I was doing right now because I realized that I could easily not breathe and still remain fully functional.
"Y, how far can your detection range get to?" I asked.
"I can reach a few hundred miles," Y replied.
"Can you be reverse detected?" I asked.
"I'm meant to use Saint Qi, not regular Qi, so it is not guaranteed, that I won't be detected if I'm trying to spy on an ascendant cultivator, anything below it however will hardly be able to notice me, especially in the chaos of war."