Although those young purebred undeads were also high-level undeads, their strength could not be compared to that of an adult high-level undead.
Purebred undead would be categorized as a high-level undead after their birth, but their strength was actually no different from a low-level undead. They had to constantly absorb death energy before they reached adulthood to become a real high-level undead.
Shen Yanxiao had seen the high-level undead creature that was chasing them everywhere before.
Not long ago, when she was fighting to the death with an intermediate-level undead creature, she accidentally entered the territory of this huge creature. As a result, the intermediate-level undead creature that had fought with Shen Yanxiao for half a day and left Shen Yanxiao riddled with scars was directly trampled to death by this fellow.
If Shen Yanxiao had not escaped quickly, she might have really summoned Taotie to save her life.