In The Clouds

The army took an airship after reaching the base near Kera, and it soared toward the sky in no time. After a while, they reached the height needed to remain undetected by the invaders.

Then, the soldiers were asked to gather on the roof, wearing their skydiving equipment. The rest was to wait for the airship to reach above the calamity for their plan to begin. Arthur and Maryam stood atop the roof of the airship, the wind howling in their airs, as they stared at the monitors showing the situation in Kera. 

Arthur stared at the flying creatures in the sky of Kera, recognizing them as the Skywalkers that had once tried to kill him too. It was a kingdom of flying demi-humans that lived in the mountains west of Alva that wanted to make sure Arthur didn't cure Diana.

"This is horrible," muttered Maryam beside him. "Such a destruction… this must be a calamity-tier monster, no less."