He scraped his hand over a week's growth of beard, considering. From his pocket he took a pipe and a leather pouch. Thoughtfully he filled the pipe and lit it.

It had started with his experiments in Force Field 348, an experiment to observe the effects of heating a conductor in that field. It had been impossible to heat the conductor electrically, for that would have upset the field, changed it, twisted it into something else. So he had used a Bunsen burner.

Through half-closed eyes, he still could see that slender strand of imperm wire, how its silvery length had turned to red under the blue flame. Deep red at first and then brighter until it flamed in almost white-hot incandescence. And all the while the humming of the transformer as the force field built up. The humming of the transformer and the muted roaring of the burner and the glowing heat in the length of wire.

Something had happened then ... an awesome something. A weird wrench as if some greater power, some greater law had taken hold. A glove of force, invisible, but somehow sensed, had closed about the wire and flame. Instantly the roaring of the burner changed in tone; an odor of gas spewed out of the vents at its base. Something had cut off the flow of flame in the brass tube. Some force, something ...

The flame was a transparent cloud. The blue and red of flame and hot wire had changed, in the whiplash of a second, to a refractive but transparent cloud that hung there within the apparatus.


The red color had vanished from the wire as the blue had vanished from the flame. The wire was shining. It wasn't silvery; it wasn't white. There was no hint of color, just a refractive blur that told him the wire was there. Colorless reflection. And that meant perfect reflection! The most perfect reflectors reflect little more than 98 per cent of the light incident and the absorption of the two per cent colors those reflectors as copper or gold or chromium. But the imperm wire within that force field that had been flame a moment before, was reflecting all light.

He had cut the wire with a pair of shears and it had still hung, unsupported, in the air, unchanging within the shimmer that constituted something no man had ever seen before.

"You can't put energy in," said Page, talking to himself, chewing the bit of his pipe. "You can't take energy out. It's still as hot as it was at the moment the change came. But it can't radiate any of that heat. It can't radiate any kind of energy."

Why, even the wire was reflective, so that it couldn't absorb energy and thus disturb the balance that existed within that bit of space. Not only energy itself was preserved, but the very form of energy.