any agents on that raid in Germany, so they must have been pretty curious to learn that a couple of their men had been picked up on the scene and sent to New York! Now things are going to break." The bridge loomed out of the darkness ahead. It was a wooden structure, crossing a narrow creek. Midway of the echoing span, they paused, and Manning pricked up his ears. He was not disappointed. The invisible presence said, "Good. I trust you can both swim? All right—drop over the railing, and swim straight back to the shore you just left, only come out under the bridge. I'll meet you there. Good luck!" They looked at each other. "I heard him," Dugan said, and without more words placed a hand on the rickety railing and vaulted out over the black water. Manning gave him a few seconds to get clear, and followed. He came up clinging to his orientation, and struck out; when he splashed ashore, Dugan was already shaking himself on the narrow strip of sand below the bank. And a third man emerged abruptly from the shadow of the bridge piles. He was an ordinary-looking man in a worn leather jacket and patched trousers, but his face was masked by a dark hood, blank save for eye-slits, and on his back he carried something like a small pack with two small levers protruding. In his right hand was a pistol, and in his left a bundle; he dropped the latter on the ground and stepped back. "Put those on," he hissed. "Quick, before they get here!" The bundle was two outfits such as the stranger wore. They donned them as instructed; the hoods were stiff with wire, and connected by a flexible cord to the packs. Manning eyed the gun speculatively; the masked man explained softly, "It's not that I don't trust you, but those gadgets are too valuable to take any chances with. They're invisibility units. Start them by pressing here." He pulled down one of the levers on his pack; he seemed to blur slightly, but they could still see him. "The headgear insulates you pretty well from the effect. Go on, start those units!" Heavy feet were thundering overhead on the bridge planks. They obeyed; the packs made a faint hum. The stranger relaxed visibly. "Now we're okay," he said in a normal voice. "By the time they catch on, we'll be a long way from here." Directly above, an angry snarl: "Sie sind grade ins Wasser gesprungen! Wer hatte erwartet—" Somebody else answered, "Vielleicht wird ein Boot dort unten gelegen