nor even notice when they pinned the medal on. When they got through with me, I just crawled into my beautiful new ship like it was an old tin can and headed out. I didn't even care right then if I landed back in Akroida's bony lap. I'd have stuck my head in her mandibles and told her, "Chew it up, Ak. It's just a cabbage, anyway."

But a funny thing happened. Out there, mooning along all alone in the dark with not a soul in a million miles, I heard Akroida laughing. It was a horrible sound, a kind of metallic neighing and snorting, but pretty soon I began laughing, too. I didn't know what the joke was, but all of a sudden I knew I'd find out some day. It did me a lot of good. I braced up and went on to Venus, where I made some real good trades. I didn't try any more capers, though. I was all capered out.

It wasn't until a year later, in a joint on Mars, that I ran into Pard Hoskins again. I gave him the old frost, but he only grinned sort of sad and touched me for some of that filthy Martian beer. He looked real seedy.

"What's the matter?" I asked, as sarcastic as I could manage. "They sending you over the road again to nab another sucker?"

He shook his head, and sighed into his beer. "I got fired, Casey," he confessed. "Over that there Killicut caper. Those plans—I might of known." He shook his head again like a tired old man.

A shiver ran over me. "Here it comes," I thought.

"What about those plans?" I asked. "Weren't they all O.K.?"

He sighed again. "Nope. Oh, the plans was O.K. They was strictly bona fide. Only they won't work on Earth. I told 'em about that anti-grav in the first place. Then I almost caused an inter-world incident stealin' the Killicut Emeralds. And now the damn thing won't work on Earth!" He set to chewing his lip and staring into his beer.

I took him by his scrawny shoulder and shook. "Why won't it work?" I yelled. "I knew there was something, the way she laughed! Why won't it work?"

He stared dully at me. "Laugh, did she? Well, she sure had the last laugh. It won't work in our atmosphere; just on a chlorine or methane planet. It works like the poles of a battery. That Great Red Spot is just the negative pole. All those there plants change the atmosphere just enough to make it a strong negative field. Then all they have to do is counter-balance that with enough positive, and there they are. It works 

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