From the thick cloud of smoke Kane saw a mowing, gibbering thing emerge through the shredding roof and flap slowly and agonizingly upward on fearfully burned wings. Calmly he aimed and fired, and the scorched and blinded thing tumbled back into the flaming mass just as the walls crashed in. To Kane it seemed that Goru's crumbling face, vanishing in the smoke, split suddenly in a wide grin and a sudden shout of exultant human laughter mingled eerily in the roar with the flames. But the smoke and an insane brain play queer tricks.