From afar, a huge depression had already appeared on the gate, clearly a crater left by the earlier neutron bomb explosion.
"This thing really is incredibly sturdy. We'll need larger-scale weapons."
Ye Qian withdrew the Drones and had them continue exploring the undiscovered corners of the Underground Palace. She contacted the World War II world and transferred over a 100-kiloton hydrogen bomb.
After slightly widening the entrance, the hydrogen bomb was carried into the ruins by a larger Drone.
Before long, the Drone arrived before the core Bronze gate. At Ye Qian's command, it accelerated, breaking through Mach 1 in an instant and slamming into the Bronze gate.
"Boom—"
This time, it was far more than a slight tremor. It was as though a small earthquake had struck the scene.
The underground metal greatly amplified the vibrations, making everyone above feel their bodies shake along with the ground several times.
The explosion ended quickly, but its outrageous power affected all the other Drones that had already flown farther inside, destroying two of them.
Everyone's hearts skipped a beat at the sight. They hurriedly checked and found that some of the intact Drones were still transmitting footage.
"Phew!"
After confirming there were no problems, Ye Qian nodded in satisfaction and ordered the Drone to inspect the site of the earlier explosion.
After blasting open a passage and reaching the vast core area, Ye Qian saw the Bronze gate in the distance, blown cleanly in half.
However, the environment at the scene had become extremely harsh. The terrifying power of the hydrogen bomb had drastically raised the surrounding temperature.
Fortunately, she had prepared beforehand and applied multiple layers of magic to the Drone's surface, ensuring that its internal temperature remained stable.
The aircraft made a small circuit around the area. Once it