The drones kept descending, filming clear footage along the cave walls and allowing them to uncover a little of the cave's true nature.
But just as everyone smiled, thinking they could use the drones to gather all the data, the transmitted footage suddenly began showing scrambled signals, while the images became blurred and distorted.
Not only was there interference in the footage, but it also shook incessantly, as if it had encountered powerful air currents that prevented the drones from flying properly.
After the operator reported this to Rhine, Rhine considered it. Seeing that the drone had only just descended to within a thousand meters and had yet to capture anything valuable, he ordered the operator to continue lowering it.
But just as the operator followed the order and guided it downward, the image suddenly froze. Then the drone lost its signal, and the entire screen went black, indicating that it had gone completely out of control and fallen.
"Damn it, what exactly is going on in there? Could the airflow inside be too strong? But standing here, we can't feel any air moving at all." Rhine did not know what to make of it. The drone's crash left him unable to determine anything.
Was the signal being interfered with, or did this space possess some means of destroying drones? None of that was clear. Rhine had someone replay the footage from the moment the drone lost control, but there was still no way to tell what had happened.
Rhine then had the drone operator launch another drone to see whether it could descend and capture any useful footage, and also to find out what exactly was causing the drones to crash.
Rhine's plan was sound, but he had not expected that when the drone descended to roughly the same