Sifeng was visibly shaking at the sight of that beast, although, he haven't confirm the rank of the beast yet, he haven't learned how to enhance his sense with his life energy and he didn't know how to draw the spell formation to confirm the rank of a beast - the job is for Yan to do, but looking at the beast, he already knew this is far from being a Stalker beasts, and for his body to be reacting like that, the beast might be a very strong Wretch beast or above.
Cold sweat was rolling down his spine, the beast is already diving towards him again, it's light wings makes its flight swift with incredible grace and agility.