Worsel knew now, though, what the Hell Hole in Space really was. It was a cavern of Overlords. It simply couldn't be anything else. And, in himself and his crew and his mighty _Velan_ he, Worsel of Velantia, Overlord-slayer par excellence of two galaxies, had in ample measure everything it took to extirpate any number of Overlords. With what he had just learned and with what he was so calmly certain he could do, the Hell Hole in Space would take no more toll. Wherefore Worsel, coiled loosely around his hard bars, relaxed in happily planful thought. And in a couple of hours a solid, clear-cut thought impinged upon his Lens. "Worsel! Con calling. What goes on there, fellow old snake? You've stuck that sharp tail of yours into some of my business--I hope!" III. Each of the Second-Stage Lensmen had exactly the same facts, the same data, upon which to theorize and from which to draw conclusions. Each had shared his experiences, his findings, and his deductions and inductions with all of the others. They had discussed minutely, in wide-open four-ways, every phase of the Boskonian problem. Nevertheless the approach of each to that problem and the point of attack chosen by each was individual and characteristic. Kimball Kinnison was by nature forthright; direct. As has been seen, he could use the approach circuitous if necessary, but he much preferred and upon every possible occasion employed the approach direct. He liked plain, unambiguous clues much better than obscure ones; the more obvious and factual the clue was, the better he liked it. He was now, therefore, heading for Antigan IV, the scene of the latest and apparently the most outrageous of a long series of crimes of violence. He didn't know much about it; the request had come in through regular channels, not via Lens, that he visit Antigan and take personal charge of the investigation of the supposed murder of the Planetary President. As his speedster flashed through space the Gray Lensman mulled over in his mind the broad aspects of this crime wave. It was spreading far and wide, and the wider it spread and the intenser it became the more vividly one salient fact stuck out. Selectivity--distribution. The solar systems of Thrale, Velantia, Tellus, Klovia, and Palain had not been affected. Thrale, Tellus, and Klovia were full of Lensmen. Velantia, Rigel, Palain, and a good part of the time Klovia, were the working headquarters of Second-Stage Lensmen. It seemed, then, that the trouble was roughly in inverse ratio to the numbers or the abilities of the Lensmen in the neighborhood. Something, therefore, that Lensmen--particularly Second-Stage Lensmen--were bad for. That was true, of course, for all crime. Nevertheless, this seemed to be a special case.