"I don't know what. I only know where. We've got a guide. And Tropile particularly asked for you, Haendl. He said you'd enjoy it." And enjoy it Haendl did--anticipation was all over his face. * * * * * They formed a party of a dozen. They armed themselves with the guns Tropile had levitated from the bulging warehouse at Princeton. They supplied themselves with gray metal cans of something that Haendl said were explosives, and with fuses and detonators to match, and they set off--with their guide. A guide! It was a shambling, fearsome monster! When Citizen Germyn saw it, he had to fight an almost irresistible temptation to be ill. Even the bare skins about him no longer mattered; this new horror canceled them out. "What--What--" he strangled, pointing. Haendl laughed raucously. "That's Joey." "What's Joey?" "He works for us," said Haendl, grinning. Joey was neither human nor beast; it was not Pyramid; it was nothing Citizen Germyn had ever seen or imagined before. It crouched on many-jointed limbs, and even so was twice the height of a man. Its ropy arms and legs were covered with fine chitinous spines, laid on as close as hairs in a pelt, and sharp as thorns. There was a layer of chitin around its reddish eyes. What was more horrible than all, it spoke. It said squeakily: "You all ready? Come on, snap it up! The Pyramids have got something big building up and we've got to squash it." Citizen Germyn whispered feverishly to Haendl: "That voice! It sounds odd, yes--but isn't it Tropile's voice?" "Sure it is! That's what old Joey is good for," said Haendl. "Tropile says he's telepathic, whatever that is. Makes it handy for us." And it did. Telepathy was the alien's very special use to Glenn Tropile, for what Joey was in fact was another Component, from a previous wristwatch mine. Joey's planet had once circled a star never visible from Earth; his home air was thin and his home sunlight was weak, and in consequence his race had developed a species of telepathy for communicating at long range. This was handy for the Pyramids, because it simplified the wiring. And it was equally handy for Glenn Tropile, once he managed to wake the creature--with its permission, he could use its body as a sort of walkie-talkie in directing the tactics of his shanghaied army. That permission was very readily given. Joey remembered what the Pyramids had done to its own planet. "Come on!" ordered Joey in Tropile's filtered voice, and they hastened through a straight and achingly cramped tunnel in single file, toward what Tropile had said was their target. They had nearly reached it when, abruptly, there was a thundering of explosions ahead. The party stopped, looked at each other, and got ready to move on more slowly. At last it had started. The Pyramids were beginning to fight back. XIII