The Guardian

Upon hearing such a roar, Ethan was taken aback, astonished that the cry of this creature could be so terrifying. 

This realization gave him a sense of the creature's formidable strength. 

Although Ethan had yet to see its form and could not ascertain what this being was, the earth-shaking, powerful bellow, full of resounding force, indicated a creature of immense size and strength, capable of emitting such a deafening roar.

At this moment, Ethan's excitement grew exponentially. 

It seemed, at last, he had encountered a formidable opponent, one with whom he could engage in a hearty and exhilarating battle. 

This prospect thrilled him immensely.

With these thoughts in mind, Ethan advanced towards the source of the roar. Soon, a colossal creature came into view. 

Even from a great distance, Ethan could discern the creature's enormous size, akin to a small mountain. Such a gigantic being was something Ethan had never encountered before.