C582 Hiding Under the Passenger Plane

The radar didn't detect anything, neither was it high up in the sky, nor low in the sky. Brown's eyes looked outside, and there was nothing but white in this area.

"The white haired old man is calling the tower, the white haired old man is calling the tower, but we haven't found the target. Maybe the target isn't in the practice area."

Hearing this voice, the entire tower felt strange