Capítulo 448: Front Soldier of the Radical Era

'What the fuck is that howl? Why am I also trembling...' 

Even when Rex is not actually there near Wedron City, the howl sent a shiver down his spine as if he is really there and can clearly feel the howl affecting his actual body.

It's like a soundwave of pure terror that makes Rex also looks in the direction of it.

But when Rex is frowning after hearing the howl, his eyes then catch the people in Wedron City acting as if nothing happened, the merchants and some people that are coming out of the walls to hunt are doing their business without even a hint of concern. 

For such a powerful howl, they should become more careful so this is weird.

'Didn't they hear the howl? Why aren't they reacting to it?', Rex thought in confusion, but then he have a wild guess that the howl can only be heard by Werewolves.

Probably some sort of frequency that can only be caught by Werewolves.