triplanetary

Updated: August 10, 2026

"It's been a long time since we had anything like that," Vall said, studying the glowing tip of his cigarette, his face wearing the curiously withdrawn expression of a conscious memory recall. "Fifty years ago; the time that gang kidnaped some girls from Second Level Triplanetary Empire Sector and sold them into the harem of some Fourth Level Indo-Turanian sultan." "Yes.

H. Beam Piper - Time Crime

But the Triplanetary forces had one great advantage. In furious haste the Secret Service men had been altering the controls of the radio-dirigible torpedoes, so that they would respond to ultra-wave control; and, few in number though they were, each was highly effective.

E. E. (Edward Elmer) Smith - Triplanetary