He did not know how long he had been walking. He could not remember where he began. He only knew that he had been walking for a long time, and it had been a rough journey. He was tired. He was covered with mud. The journey had to end, but he did not know when that would happen, either. He just had to continue walking.
His path passed over uneven ground and was covered with vegetation. The journey was slow as he made his way through trees, around rocks and over a trail that really was not a trail. As far as he knew, nothing had traveled this path before.
Suddenly, his surroundings changed, and the green that had surrounded him since the beginning gave way to a flat emptiness. The ground was black and cracked. The surface was hard and tough on his bare feet. Earlier, he spotted a large beast, and he instinctively knew that this was its home. The beast was gigantic and made loud rumbling noises when it moved. It would be best to make it through the desolate wasteland as quickly as possible.
However, there was something out there other than the beast. For a long time, he had the feeling of being watched by some unknown force. As he made his way to the end of the black landscape, he heard something racing from behind. He had to make it to the land on the other side before he was caught.
He made it to a land similar to what he had been walking on forever. Rough, green and untrodden. However, he could not escape. His only chance was to stay a still as possible and hope that he was hidden from this new threat.
It was not alone. He heard language that was foreign to him. What were they saying? Could they see him?
They moved around and looked right at him. He never moved. He had no idea what would happen next. He only knew to stay still.
It worked. The creatures moved away from him, but he would not move until he knew it was safe. That feeling never came because he knew that they were watching from the distance.
Eventually, he had no choice. He had to move. He had to follow an irresistible urge to go forward. Something was out there, and he had to find it. Perhaps it was not far away.
SBI: A Thinning Crowd 
A very big tortoise?
He was good size. He booked it across the driveway, too.
I like it. For a moment I thought the beast was going to be a big dog.
Thanks. No dogs involved.