The flight was hovering above the first fire-ball.
Earth, the Marauder
CONCLUSION OF A THREE-PART NOVEL
By Arthur J. Burks
CHAPTER XIX
Desolation
Stranger, more thrilling even than had been the flight of the Earth after being forced out of its orbit, was the flight of those dozen aircars of the Moon, bearing the rebels of Dalis' Gens back to Earth.
Martian fire-balls and the terrific Moon-cubes wreak tremendous destruction on helpless Earth in the final death struggle of the warring worlds.