Jack Williamson,
The prince of space
(1931)
“ Each one exploded in purple flame, crushed a sunship."Three fliers left," Bill counted, eyes on the growing blue globe before them. "Two left. Good-by, Brand." He grasped the bluff Captain's hand. "One left. Will we have time?"He looked forward. The blue globe, with the dancing, sparkling haze of sapphire swirling about it, was swiftly expanding."The last one! Our turn now!"He saw a tiny fleck of purple light dart out of the expanding azure sphere that they had hoped to ram. Then red-violet flame seemed to envelope him. He felt the floor of the bridge tremble beneath his feet. ”
