But next morning in the bathroom, looking at the reflection of his unremarkable face, there was something chilly in his feelings that he couldn't quite analyze. He flipped his razor open and suspiciously studied the bright metal wafer, then flipped it closed with an irritated shrug. As he shaved, it occurred to him that a good detective-story murder method would be to substitute a very sharp razor blade for one the victim knew was extremely dull. He'd whip it across his throat, putting a lot of muscle into the stroke to get through the tangle, and--_urrk_! Ridiculous, of course. Wouldn't work except with a straight razor. Wouldn't even work with a straight razor, unless ... oh, well. He told himself the blade was noticeably duller today. Next morning, he was still using the freak blade, but with a persistent though very slight uneasiness. Things should behave as you expected them to, in accordance with their flimsy souls, he told himself at the barely conscious level. Men should die, hearts should break, girls should tell, nations perish, curtains get dirty, milk sour ... and razor blades grow dull. It was the comfortable, expected, reassuring way. He told himself the blade was duller still. Just a bit. The third morning, face lathered, he flipped open the razor and lifted it out. "You're through," he said to it silently. "I've had the experience before of getting bum shaves by trying to save a penny by pretending to myself that a wornout blade was still sharp enough, when it obviously couldn't be. Or maybe--" he grinned a little wryly--"maybe I'd almost get one more shave out of you and then you'd fall to pieces like the Wonderful One Horse Shay and leave me with a chin full of steel porcupine quills. No, thanks." So Ernie Meeker pushed through the little slot beside the mirror and heard tinkle faintly down and away the first of the Little Gifts, the Everlasting Razor Blade. One hundred and fifty thousand years later, it turned up, bright and shining, in the midst of a small knob of red iron oxide excavated by an archeological expedition of multi-brachs from Antares Gamma. Those wise history-mad beings handed it about wonderingly, from tentacle to impatient tentacle. * * * * * That day, Ernie felt a little sick, somehow. After dinner, he decided it was the Thuringer sausage he'd eaten at lunch. He hurried up to the bathroom with a spoon, but as he clutched the box of bicarbonate of soda, preparatory to plunging the spoon into it, it seemed to him that the box said distinctly, in a small inward-outward voice: "No, no, no!" Ernie sat down suddenly on the toilet seat. The spoon rattled against the porcelain finish of the washbowl as he laid it down. He held the box firmly in both hands and studied it. Size, shape, materials, blue color, closure, etc., were exactly as they should be. But the white lettering on the blue background read: AQUEOUS FUEL CATALYST