maneuvered their craft through the opening and down a water tunnel into a little interior harbor beneath the great structure. Here a sourceless yellow light illuminated a dozen other metal boats chained to a stone quay.
On the quay waited a giant figure in silver mail and helmet. Cullan instantly recognized Dagda's craggy, massive face and fierce eyes.
"The lord Lugh awaits you," he boomed. "Already word has gone out to every island of our folk, and soon all will have gathered here."
"To go after Fand?" Cullan asked with feverish hope.
Dagd? looked at him solemnly. "You may see her sooner than you think, outworlder."
They followed the burly giant up coiling silver stairs through shining iridescent corridors and chambers of soft, sourceless light. Everywhere in the citadel they heard running feet, babel of excited voices, stir of intense activity.
The Tuathan giant led them at last into a high chamber that was not large. Around its pale rose-tinged walls stood implements and instruments of the Tuathan science, their purpose unguessable to Cullan. And here stood Lugh, straight and spare in his mail, his somber face darker than ever as he listened to Goban's quick elaboration of his tale.
"Aye, it is plain enough," Lugh said, finally. "Tethra has long coveted the Gateway. And when his plot to gain it through Mannanan failed, he struck directly and took both it and its guardian."
"What will they do with her? They'll not kill her?" Cullan asked tensely.
"Not until they have wrung the secret of the Gateway from her," Lugh said darkly. "And then—then at last Tethra and his evil horde will be free to go through into your Earth."
His voice deepened as he continued. "It is why we Tuatha long ago closed the way between worlds. Your people would be defenseless against the dark science of the Fomorians. Once before, ages ago in your time, they broke through into Earth under Tethra and began conquering your primitive races.
"We Tuatha forced the Fomorians that time to return to this world. And soon after, when the men of Earth revolted against our own wise rule, we returned ourselves into this world and closed the Gateway so that the Fomorians could not again invade your world."
Lugh's face was heavy with memory. "Since then, for many years of our time and for many ages of yours, we have kept the Gateway closed. Only a few times, when the forces of nature, happened to open the Gateway momentarily, have any from Earth come through. Your ancestor Cuchulain was one such, and it was because Fand gave him that ring you wear that you in turn were drawn into our world by such a chance opening of the way.
"But now the mechanism of the Gateway is in Tethra's hands. And when he forces its secret from Fand, he and his evil race will invade your world. I tell you that your folk of Earth will be defenseless before them! Your weapons of crude material science will be in vain, and the Fomorians will fasten an evil and hideous tyranny on all your race!"
Brian Cullan was chilled. He felt a fear such as he had not felt on that former occasion when Mannanan had plotted for the Gateway.
