She found out almost immediately. He was twisting his head, burrowing with his nose against the blouse over his right shoulder. The open tunic give a bit, and he burrowed painfully, Joan watching with growing fascination, until one of the binding wires stopped further progress. But it seemed far enough, judging from the satisfied illumination in Hilary's eyes.
He spoke, his mouth pressed close against the shoulder blade, his tones queerly muffled, thick.
"Grim Morgan, Wat Tyler, Grim Morgan, Wat Tyler," he whispered over and over again. He could not hear if there was any response; his ears were muffled now by the spread gag. He could not help that.
"Grim Morgan, Wat Tyler," he muttered monotonously, "Hilary Grendon calling. Held prisoner with Joan, top of Robbins Building. Guarded. Urgent you free us. Artok has sent out general death orders. I have plan to stop him. Come, quickly."
Over and over he murmured the message, hoping desperately they would hear him in the communication disks strapped to their shoulders.
"Come quickly," he repeated; and then the guard, tiring of the view below, or the streets having been cleared of rebels, came softly into the room. Hilary's head jerked quickly back, the shoulder of his tunic falling back into position.
"Here, what's this?" the guard growled suspiciously, catching sight of the displaced gag. "How on Mercury did you do that?"
He knelt swiftly, thrust the gag back into position with ungentle paw, kicked the unresisting form in the side to show his displeasure, and rose. Hilary's heart pounded; the guard had not seen the inconspicuous disk under the tunic. He was in an agony of expectation. Had his comrades caught his message? Could they rescue him even if they had? Questions that only time could answer.
The guard was alert now; he did not like that queer removal of the gag. There would be no further chance to unbind themselves. What seemed hours passed as they lay cramped, immobile.
The air grew thick and warm, or was it only his imagination? No, for the guard felt it, too. Then something buzzed, intermittently. One long, two short. It seemed to emanate from a round black button on the sleeve of his gray tunic. A signal!
The guard exclaimed something in guttural Mercutian, rose hastily, and closed the open door and window. He pressed another button, and sheeted lead curtains rolled swiftly over the vita-crystal roof, darkening the room, cutting off the rays of diffused sunlight. Then he seated himself not far from the captives, facing them, grinning savagely. Hilary wondered why.