Chapter 637: Assassin King Kills the Driver_2

"Look at how full of hot air you are!"

Meanwhile, Qiu Wentian took deep breaths to calm himself, whispering, "Should we continue to use the Subterranean Technique to stay hidden next?"

"That's the safest option, which can bypass the arrays on the surface, but indeed it's a bit slower," Li Changhe thought for a moment before asking, "How long can you maintain your Subterranean Technique?"

"I've never tested its limits, but to avoid being hunted down, I've hidden underground for a whole day and night before. I have the Internal Breath Technique, which allows me to stay hidden underground for a long time. You guys can't do that. You'll need to come up for air every so often."

"I see, theoretically I can use my abilities to condense oxygen underground. Or I could create a small space for us to rest, it's just uncertain if this would affect the Subterranean Technique," said Qiu Wentian.