If they could get that many Saint-grade Heavenly Treasures from Ling Tian and the others, then swearing a soul oath to spare their lives would be a trivial matter. After all, as long as they got those Saint-grade Heavenly Treasures, it wouldn't matter whether they killed Ling Tian and the others.
They could even trick them into handing over the Saint-grade Heavenly Treasures first, then turn Ling Tian and the others over to someone else. That way, they wouldn't be the ones to kill them, and it wouldn't violate the soul oath they had sworn.
Most importantly, from what they could see, swearing a soul oath was the only way to earn Ling Tian and Chi Xue's trust and get a chance at the Saint-grade Heavenly Treasures in their hands. So when Old Man Li heard Chi Xue's words, he grew excited and was about to swear a soul oath. But Chi Xue's next words infuriated him: Chi Xue said the same thing to everyone else, which meant plenty of people would be willing to do it. Old Man Li might not get the first chance after all.
Besides, based on his experience, Old Man Li had a vague sense that Chi Xue and the others didn't truly trust them. At that moment, he was more convinced than ever that, as the Old Woman had said, Chi Xue and the others were trying to provoke a clash among the many Outer Realm Cultivators so they could escape in the chaos.
"Kid, why do I get the feeling you're trying to stir up discord among us and make us fight?" Old Man Li said coldly. "Hey, did you really think we're all fools who can't see through it? You underestimate us."
Old Man Li wasn't saying this only to Chi Xue