He was at the briefing room at 2158 on the nose. The Interstellar Exploration Service didn't much go for tardiness, but they didn't pay extra if you got there a half-hour early. Captain Peter Wayne made it a point of being at any appointment two minutes early--no more, no less. The room was starting to fill up, with men and women Wayne knew well, had worked with on other expeditions, had lived with since he'd joined the IES. They looked just as puzzled as he probably did, he saw; they knew they were being called in on something big, and in the IES big meant _big_. At precisely 2200, Lieutenant General Scarborough emerged from the inner office, strode briskly up the aisle of the briefing room, and took his customary stance on the platform in front. His face looked stern, and he held his hands clasped behind his back. His royal blue uniform was neat and trim. Over his head, the second hand of the big clock whirled endlessly. In the silence of the briefing room, it seemed to be ticking much too loudly. The general nodded curtly and said, "Some of you are probably wondering why the order to report here wasn't more specific. There are two reasons for that. In the first place, we have reason to believe that we have found a substantial deposit of double-nucleus beryllium." There was a murmur of sound in the briefing room. Wayne felt his heart starting to pound; D-N beryllium _was_ big. So big that a whole fleet of IES ships did nothing but search the galaxy for it, full time. "Naturally," the general continued, "we don't want any of this information to leak out, just in case it should prove false. The prospect of enough D-N beryllium to make fusion power really cheap could cause a panic if we didn't handle it properly. The Economics Board has warned us that we'll have to proceed carefully if there actually is a big deposit on this planet." Captain Wayne stared uneasily at Sherri James, who frowned and chewed her lip. To his left, a short, stubby private named Manetti murmured worriedly, "That means trouble. D-N beryllium always means trouble. There's a catch somewhere." General Scarborough, on the platform, said, "There's a second reason for secrecy. I think it can better be explained by a man who has the evidence first-hand." He paused and looked around the room. "Four weeks ago, the Scout Ship _Mavis_ came back from Fomalhaut V." There was a dead silence in the briefing room. "Lieutenant Jervis, will you tell the crew exactly what happened on Fomalhaut V?" * * * * * Lieutenant Jervis stepped forward and took his place on the platform. He was small and wiry, with a hawk nose and piercingly intense eyes. He cleared his throat and smiled a little sheepishly. "I've told this story so many times that it doesn't even sound real to me any more. I've told it to the Supreme Senate Space Committee, to half the top brass in the IES, and to a Board of Physicians from the Medical Department.