On the following day therefore, he asked audience of Jadgor, took Robur with him when he appeared before the king and suggested the use of a spy on Cathur's heir; telling so much as he felt he dared, to support his plea.

At first Jadgor was amazed. "How know you these things, Lord Jasor!" he cried.

"I have heard things in the north," Croft replied without naming the location, letting Jadgor suppose it was during his days in Scira if he would.

And it seemed that Jadgor did that very thing, since after a time he asked exactly what Jasor would propose.

Croft suggested a consultation with Magur—and the sending of word to Abbu in the name of both Jasor and the Chief Priest of Himyra to see what Kyphallos did. That there was reason for his suggestion the very next day brought proof. A sailor from a Cathurian galley was found concealed in the shop where the new engines were being made. This following hard on the heels of Kyphallos's departure, Croft held suspicious indeed.

He smiled in rather a grim way when Robur told him of the occurrence, rushing into the room where he sat engaged in the drawing of some further plans. But he took no steps save to have the sailor taken back to his ship and his captain cautioned to keep him out of harm's way, and to recommend that Robur place a guard about the shop. Indeed he was not greatly worried as he knew of one way in which he could watch Kyphallos and learn what he planned.

On the sixth day, having seen the work on the engines well under way, he took the car, filled its tanks with spirits and drove out the north road toward that white palace in the mountains where he had been hidden as a guest.

He had sent no word of his coming, yet he felt assured that a welcome would be his. There was a smile on his lips and a paean of joy in his heart as he stormed up the mountain grades and out across those gorges the road crossed on massive arches of stone.

So at last he stopped before the steps leading up to the doors of the white Aphurian mansion, and sprang down. He mounted the steps and found once more the blue servant he had seen on another occasion, watching in awed expectancy just inside. To him he gave his title and asked for Naia herself.

The blue man bowed. "She lies yonder, Lord," he replied. "I shall lead you to her."