And: "Get it over there! Especially the shock globe!" the port admiral yelled. For he himself could direct the engagement only in broad; details must be left to others. To be big enough to hold in any significant relationship the millions of lights representing vessels, fleets, planets, structures and objectives, the Operations tank of the Directrix had to be seven hundred feet in diameter; and it was a sheer physical impossibility for any ordinary mind either to perceive that seventeen million cubic feet of space as a whole or to make any sense at all out of the stupendously bewildering maze of multicolored lights crawling and flashing therein. Kinnison and Worsel had handled Grand Fleet Operations during the Battle of Jarnevon, but they had discovered that they could have used some help. Four Rigellian Lensmen had been training for months for that all-important job, but they were not yet ready. Therefore the two old masters and one new one now labored at GFO: three tremendous minds, each supplying something that the others lacked. Kinnison of Tellus, with his hard, flat driving urge, his unconquerable, unstoppable will to do. Worsel of Velantia, with the prodigious reach and grasp which had enabled him, even without the Lens, to scan mentally a solar system eleven light-years distant. Tregonsee of Rigel IV, with the vast, calm certainty, the imperturbable poise peculiar to his long-lived, solemn race. Unattached Lensmen all; minds linked, basically, together into one mind by a wide-open three-way, superficially free, each to do his assigned third of the gigantic task. Smoothly, effortlessly, those three linked minds went to work at the admiral's signal. Orders shot out along tight beams of thought to the stolid hundreds of Rigellian switchboard operators, and thence along communicator beams to the pilot rooms, wherever stationed. Flotillas, squadrons, subfleets flashed smoothly toward their newly assigned positions. Supermaulers moved ponderously toward theirs. The survey ships, their work done, vanished. They had no business anywhere near what was coming next. Small they were, and defenseless; a speedster's screens were as efficacious as so much vacuum against the forces about to be unleashed. The powerhouses also moved. Maintaining rigidly their cryptic mathematical relationships to each other and the Sun, they went as a whole into a new one with respect to the circling rings of tightly packed meteors and the invisible, nonexistent mouth of the Boskonian vortex. Then, before Haynes' formation was nearly