But Chet Bullard did not answer. He walked slowly away, his eyes on the ground, as one who is trying to plan; driving his thoughts in an effort to find some escape from a danger that seemed to hover threateningly. CHAPTER XV _Terrors of the Jungle_ Towahg had learned the names of these white-skinned ones who came down from whatever heaven was pictured in his rudimentary mind. His pronunciation of them was peculiar: it had not been helped any by reason of Diane's having been his teacher. Her French accent was delightful to hear, but not helpful to a Dark Moon ape-man who was grappling with English. But he knew them by name, using always the French "Monsieur," and when Chet repeated: "Monsieur Kreiss--he go," pointing through the jungle, and followed this with the command: "Towahg go! Me go!" the ape-man's unlovely face drew into its hideous grin and he nodded his head violently to show that he understood. Chet gripped a hand each if Harkness and Diane and clung to them for a moment. Below their knoll the white morning mist drifted eerily toward the lake; the knoll was an island and they three the only living creatures in a living world. It was the first division of their little force, the first parting where any such farewell might be the last. The silence hung heavily about them. "Au 'voir," Diane said softly; "and take no chances. Come back here and we'll win or lose together." "Blue skies," was Walt Harkness' good-by in the language of the flyer; "blue skies and happy landings!" And Chet, before the shrouding mist swallowed him up, replied in kind. "Lifting off!" he announced as if his ship were rising beneath him, "and the air is cleared. I'll drop back in four days if I'm lucky." Towahg was waiting, curled up for warmth in the hollow of a great tree's roots. Like all the ape-men he was sullen and taciturn in the chill of the morning. Not until the sun warmed him would he become his customary self. But he grunted when Chet repeated his instructions, "Monsieur Kreiss, he go! Now Towahg go too--go where Monsieur Kreiss go!" and he led the way into the jungle where the scientist had emerged. * * * * * Chet followed close through wraith-like, drifting mist. They were ascending a gentle slope; among the trees and tangled giant vines the mist grew thin. Then they were above it, and occasional shafts of golden light shot flatly in to mark the ascending sun. They were climbing toward the big divide, that much Chet knew. White, ghostly trees gave place to the darker, gloomier growth of the uplands. Strange monstrosities, they had been to Chet when first he had seen them, but he was accustomed to them now and passed unnoticing among their rubbery trunks, so black and shining with morning dew.