He found them, with Lehn's, in the hut next door. His belt pouch yielded quinine; he gulped a large dose and felt better. After he had dressed, he went and wrestled Lehn into his coverall and helmet and dragged him out beside Thekla, who was groaning back to consciousness in the mud.

Looking up, MacIan saw three Nahali men watching him warily out of scarlet eyes as they slunk toward him.

Thekla's escort. And it was a near thing. Twice clammy paws seared his face before he sent them writhing down into the mud, jerking as the overload beat through their nervous systems. Triangular mouths gaped in noseless faces, hand-like paws tore convulsively at scaly breast-plates, and MacIan, as he watched them die, said calmly:

"There will be hundreds of them storming the fort. My gun won't be enough. But somehow I've got to stop them."

No answer now. He shrugged and kicked Thekla erect. "Back to the fort, scut," he ordered, and laughed. The linked belts were fastened now around Thekla's neck, the other end hooked to the muzzle of MacIan's gun, so that the slightest rough pull would discharge it. "What if I stumble?" Thekla snarled, and MacIan answered, "You'd better not!"

Lehn was big and heavy, but somehow MacIan got him across his shoulders. And they started off.


The fringe of the swamp was in sight when MacIan's brain became momentarily lucid. Another dose of quinine drove the mists back, so that the fort, some fifty yards away, assumed its proper focus. MacIan dropped Lehn on his back in the mud and stood looking, his hand ready on his gun.

The village swarmed with swamp-rats in the slow, watery dawn. They were ranged in a solid mass along the edges of the moat, and the fort's guns were silent MacIan wondered why, until he saw that the dam that furnished power for the turbine had been broken down.

Thekla laughed silently. "My idea, MacIan. The Nahali would never have thought of it themselves. They can't drown, you know. I showed them how to sneak into the reservoir, right under the fort's guns, and stay under water, loosening the stones around the spillway. The pressure did the rest. Now there's no power for the big guns, nor the conductor rods in the moat."