Chapter 4077

"There is… There is…." A series of echoes suddenly came from a distance, but after crossing the center of Samuel, they quickly spread further away. "There isn’t… there isn’t…!" Samuel almost infused all the energy into his ears and listened carefully to these echoes. "How could this be?" Samuel suddenly raised his eyes and frowned. It was really strange. With Echo, it was enough to prove that the sound must have come from something. Therefore, Samuel listened carefully as soon as he heard the Echo, hoping to judge where there was a block and find the corresponding direction through the sound. But what was weird was that when these echoes came back to him and were released, suddenly... They were getting farther and farther away... They didn't run into any so-called obstacles at all. They were getting farther and farther away until Samuel’s ears which were filled with energy couldn't even hear. What was the principle behind this? The first time they went out and hit the wall,