Tex shuddered to think what that would mean for the colonists, already coming hopefully into the fertile plateaus.

A sluggish breeze rolled the mist south into the swamps, and Tex got his first clear look at the enemy. His heart jolted sharply.

This was no mere raid. This was an attack.

Hordes of tall warriors swarmed toward the walls, pale skinned giants from the Sunless Land with snow-white hair coiled in warclubs at the base of the skull. They wore girdles of reptile skin, and carried bags slung over their brawny shoulders. In their hands they carried clubs and crude bows.

Beside them, roaring and hissing, came their war-dogs; semi-erect reptiles with prehensile paws, their powerful tails armed with artificial spikes of bone.

Scaling ladders banged against the walls. Men and beasts began to climb, covered by companions on the ground who hurled grenades of baked mud from their bags.

"Beetle-bombs!" yelled Tex. "Watch yourselves!"

He thrust one ladder outward, and fired point-blank into a dead-white face. A flying clay ball burst beside the man who fired the nearest ground gun, and in a split second every inch of bare flesh was covered by a sheath of huge scarlet beetles.

Tex's freckled face hardened. The man's screams knifed upward through the thunder of wings. Tex put a bullet carefully through his head and tumbled the body over the parapet. Some of the beetles were shaken off, and he glimpsed bone, already bare and gleaming.

Missiles rained down from above; beetle-bombs, green snakes made worm-size by starvation. The men were swarming up from the compound now, but the few seconds of delay almost proved fatal.