Tony’s eyebrows lifted. “Oh-oh!” He squinted ahead. “Who—”
“Dunno. But—somebody. Just thought I’d tell you. We’d better keep our eyes peeled after this.”
Phil exchanged a meaningful glance with Tony and increased his pace. The latter frowned, trying to figure out what this new development meant. The Earth Star? It was scarcely probable that anyone in Sub-Sahara would know the details of the theft and its aftermath. More likely the motive was merely petty robbery—unless, indeed, Phil had actually dreamed it. But in his heart, somehow, Tony sensed impending danger. The baleful fires of the Earth Star still burned far below the surface of the planet.
Desquer? He could scarcely know anything of the jewel. Brady? Perhaps the encounter with Zadah, the Rajah’s secretary, had aroused the captain’s suspicions. Or—Jimmy? Was he searching for the Earth Star, trying to learn which of his brothers carried it? That might have been more plausible had not Jimmy kept insisting, with his brothers, that he himself had stolen the gem.
Tony’s face did not change, but his hand touched the butt of the carbon-pistol. He felt safer with the weapon at his thigh. For a time he plodded on, every sense alert for sign of danger. The immediate peril was from the Copts, of course.
None of the underground race appeared as the group skirted the Midnight Sea. They came at last to a tunnel mouth where Desquer paused, hesitating, to confer with Brady. The latter pointed to a sign cut out of the rock above the entrance—a full moon surmounted by a crescent.
“Moon and sistrum,” the captain nodded. “This is one of the forbidden gateways. A door to Alu.”
Desquer grunted. “Very well. Come along. Watch out for traps.”
They entered the tunnel. It was darker, though a vague illumination filtered from the walls and roof, due, perhaps, to some sort of radioactivity. The passage slanted down steeply. It was apparently little used, and in spots almost blocked by debris, where the legionnaires had to crawl through painfully. Desquer’s bull strength came in useful there. The giant commandant was untiring, and there came a time when he was almost carrying Brady along as the captain’s weak leg grew weaker.