said Manning, "we'll continue as of 1945. Move!"

Grudgingly they moved. Kahl growled over his shoulder, "One thing does not seem to have occurred to you. This is Germany of the future, where Wolfgang and I are much more likely to find friends than you are."

Manning did not answer. He had halted, stiffening, on the time machine's threshold, and sniffed the air critically. To him came sudden recognition of the scent which mingled, strengthening, with that of spruce and fir: a heavy, tarry odor of burning. He looked upwind. Through the rifts of the treetops were clearly visible clouds of black smoke, boiling upward against the blue sky. Flames flickered angrily beneath, and to Manning's ears came the faint but subtly all-pervasive crackling of the fire. It was drowned out briefly by the alarmed croakings of a flight of ravens that circled overhead and then flapped away, and in the relative stillness that followed another sound was audible—that of human voices, raised in shouts and commands.

"Looks like the local fire department's on the job," remarked Dugan.

"The fire!" exclaimed Kahl hoarsely. "It is blowing toward us—If it reaches the Zeitfahrer—"

"Guess the man's right," said Manning. "If that is the fire department, we'd better get in touch with them." All four started to run, quartering across the visible face of the blaze toward the voices' source.

They had covered a hundred yards when from ahead, sharp above the snapping flames, a shot spanged. The two Americans instinctively hugged the ground; Kahl and Wolfgang, in advance, froze and stared at the screen of firs. From just beyond exploded a violent fusillade, with the hasty clatter of automatic fire setting the tempo; and in the midst of all the shooting was the noise of a racing motor and a rackety whir that could come only from spinning propeller blades.

The sound rose and seemed to hang overhead. Manning looked up and thought for an instant that he glimpsed the dark moving shape of a flying thing; but when he looked straight at the spot there was nothing. A moment later he was conscious that the roar of the engine had ceased and with it the noise of firing. The crackle of the forest fire came as from far away to deafened ears.

Dugan and Manning looked blankly at one another. They got to their feet and stood in indecision.

"Damned if I know," said Manning bewilderedly. "For 

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