Lu Xiaotian was startled. The formation had subtly changed, but this formation inherited from the dragon race did not possess any ability to heal itself. That could only happen if someone was controlling it from the shadows.
Yet aside from the four of them present, there was no fifth person.
"Ice Coffin, the Six-Eyed Qilin King, or perhaps the Iron-Winged Corpse Dragon." Lu Xiaotian's thoughts raced. Unfortunately, he had not seen most of the earlier process in which Ice Coffin and the others had deduced the formation. By the time he joined in, they had already reached the final stage.
At that moment, the Dragon Vessel Heavenly Soul Liquid twisted through the void in an irregular shape, seemingly affected by different external auras. Streaks of dragon-vessel radiance spilled from it and flew into the surrounding void.
The closer they got to the Dragon Vessel Heavenly Soul Liquid, the greater the suppression on their Primordial Spirits became. When they came within less than three li of it, the four of them slowed to a maddening crawl, far slower than an ordinary person walking—as if old tortoises were taking a stroll.
Lu Xiaotian trailed at the very back of the group, frowning as he continued pondering the strange matter of the formation healing itself.
Clearly, if any one of the three old monsters ahead controlled the formation barrier and made it heal, they intended to cut off everyone's retreat. Their sinister purpose was self-evident.
After hesitating briefly, Lu Xiaotian was just about to give up competing for the Dragon Vessel Heavenly Soul Liquid and leave before the formation barrier fully healed when he suddenly found himself sinking into mud. By now, if he tried to retreat, the formation barrier would certainly already have healed.
"Could he actually be planning to leave all