Blake didn't know what the loud horn noise meant, where did it come from, nor what did it mean.
He also didn't have any plans to find out about it as he only had his focus on getting himself and Robus away from the place as soon as possible.
However, Blake was soon forced to find out what the horn meant whether he wanted it or not.
Just right as the horn resounded, from Robus and Blake's left side, or from the humanoid demons' base direction, 3 humanoid demons with deformed wings showed themselves and rammed Robus and Blake from the side with their fist.
The actual damage that was done to Robus and Blake's bodies was nothing worth mentioning about as the dark earth armor completely negated the damage of the hit and they only felt slightly numb, the force and momentum that was carried behind the punch was what mattered the most.