When he flew to the edge of the city, a burst of bright light flashed behind Chen Feng, followed by a dull explosion with waves of heat waves coming towards Chen Feng.

After the Yuan Energy Bomb is detonated, it will form a huge fireball with a regular shape, like a small sun, this is not the first time Chen Feng has seen the Yuan Energy Bomb explode, but he is still very interested in watching it. After truly seeing the power of the Yuan Energy Bomb explosion, Chen Feng became more and more curious about its principle.

After waiting for more than half an hour, the power of this small equivalent Yuan Energy Bomb was released, Chen Feng rushed towards the center of the explosion with his magic sword, the closer he got to the center, the more he could feel the destructive power of the Yuan Energy Bomb, with Chen Feng's physique, he felt slightly scorching, and the temperature here must have been quite terrifying when it exploded just now.

Chen Feng searched carefully near the tipping point for a while, and found no suspicious points, Chen Feng left directly, he cleaned up the two cities, and he was about to go to Dunwei, the main target of this trip.

Is this Dunwei? Chen Feng was in the air, overlooking the vast desert below, and it was still a little hard to believe in his heart, through the investigation report after the explosion of Dunwei, Chen Feng had a lot of imagination about Dunwei, but he just didn't expect this possibility. He used his magic sword to circle around the edge of the beach, and Chen Feng found a little building debris in a place that was not affected by the explosion, but it was also submerged in sand.

After inspecting the desert with a flying sword, Chen Feng did not find a trace of the existence of cataclysmic monsters here. Facing the vast sea of sand, Chen Feng didn't know what to do next for a while. "Otherwise, blow it up first?" Soon Chen Feng suppressed this idea, not yet, he didn't even have a target for such a large desert, and if he blindly bombed it, it would just be a waste of Yuan Energy Bomb.

Compared with the possible cataclysmic monsters, Chen Feng was more puzzled about the cause of this desert, this was definitely not caused by the psionic bomb, if everything was normal, after more than a hundred years of recovery, the area where the shield was destroyed by the psionic bomb should become a vibrant jungle, and the reason seemed to fall back to the cataclysmic monsters.

Looking at the sand dunes in the distance, Chen Feng grabbed a handful of sand and put it in front of him, and observed it carefully, he looked for sand everywhere when he was inspecting this desert, and the sand in the desert was extremely natural, no matter the size and shape, it seemed to be produced by natural weathering.

But the thickness of this natural sand layer is more than three meters, and it is impossible to naturally produce so much natural sand in more than a hundred years, even with the ability of the vine monster, it is impossible to make such a scene, and more importantly, what is the reason for making such a big desert, all kinds of abnormal phenomena made Chen Feng have to change his thinking, looked up at the clear sky, Chen Feng decided to look for the traces of the cataclysmic monster in this desert again.

Chen Feng found a low mountain peak in the distance of Dunwei, with this mountain peak as the origin, Chen Feng relied on the military map to roughly delineate the direction of several tipping points in Dunwei City, Chen Feng chose one and looked for it, it took some time, Chen Feng dug ten meters into the ground, and finally found the traces left by the Yuan Energy bomb.

Chen Feng took this point as the center, dug around a few times, and finally found something special, a layer of black mud soil, which was tightly attached to the ground where the Yuan Energy Bomb was melted, pinched a piece of mud and rubbed it in his hand, Chen Feng had a faint guess in his heart.