Because Ailee was an archer, she was the one to receive the [Higher Vision(Passive)] ability crystal of the old nurse.
That allowed her to see the otherwise imperceptible movements near the Zombie Centaur's rotten head.
It was a second brain that seemed to pulsate, which was quite odd for an undead to possess.
A bad feeling had overcome her when Dilan had attacked, which was why Ailee urged him to retreat as quickly as possible.
Under normal circumstances, Ailee would never say something during a fight unless it was absolutely necessary.
As such, the moment Dilan heard her voice, he changed his trajectory immediately.
Twisting his body midair, he swung around and one of his feet touched the body of the Zombie Centaur.
Kicking hard, he catapulted himself away from the monster.
He crashed to the ground, and nearly lost his grip on the longsword.
But he had not broken any of his bones, which was a relief.