"Now it appears we could be wrong. Maybe our concept of science is too narrow. Maybe we're like the turkey. We've become so fixed in our pattern of solving a problem we can't change, can't back off and take another look, see the problem not as it appears but as it really is."

"But isn't that the science of E?" Tom asked curiously. "To be able to extrapolate any co-ordinate system? I'm not criticizing," he added hastily. "Just asking."

"I suspect even our means of extrapolation are too limited, too based on the relationship of things and forces to each other, too set in the notion that only physical tools can affect physical things. We may be looking at a low fence, calling it a log, and therefore not able to understand why we can't walk around the obstruction in the usual manner." He stopped, and added with a shrug. "Stupid, maybe. Or like the turkey, the yard is so big that he never gets a picture of it as a whole enclosure. By the time he's wandered down this side of the fence he's forgot what he found on the other side. Never can put the whole thing together in his mind. That's my trouble, anyhow. So far, I'm not able to put the whole thing together, see it all as one piece.

"When I do, if I do, then maybe like a caged animal I'll see how to unlock an opening, or maybe realize the only way out is to fly."

There beside the softly flowing river, where water was obeying natural law without any trouble, the three men broke off their discussion when they saw a bright flash high in the sky above them. All three knew what it meant.

Another E ship had arrived.

No doubt the ship would expect light signals from the colonists in acknowledgment of their space flare.

If the ship had come while this portion of the planet was still in daylight, they would have seen there was no village, no ship, no equipment for direct communication. They may even have reasoned there was no means of signaling with artificial light.

But there was nothing to tell them that those on Eden could not build a fire.

As if they were present on the ship themselves, the three men could anticipate what must be happening there. Right now they would be anxiously waiting for signal flares to light up, to spring up like signal fires on a lonely island where a marooned man has, at last, sighted a ship on the horizon.