Through the black night, beneath deeper blacknesses which were the dark undersides of huge toadstools, creeping silently, with every sense alert for sign of danger or for hope of giant prey, Burl made his slow advance. A glorious butterfly of purple and yellow markings, whose wings spread out for three yards on either side of its delicately formed body, had hidden itself barely two hundred yards away. Burl could imagine it, now, preening its slender limbs and combing from its long and slender proboscis any trace of the delectable foodstuffs on which it had fed during the day. Burl moved slowly and cautiously forward, all eyes and ears. He heard an indescribable sound in a thicket a little to his left, and shifted his course. The sound was the faint whistling of air through the breathing-holes along an insect's abdomen. Then came the delicate rustling of filmy wings being stretched and closed again, and the movement of sharply barbed feet upon the soft earth. Burl moved in breathless silence, holding his spear before him in readiness to plunge it into the gigantic butterfly's soft body. The mushrooms here were grown thickly together, so there was no room for Burl's body to pass between their stalks, and the rounded heads were deformed and misshapen from their crowdings. Burl spent precious moments in trying to force a silent passage, but had to own himself beaten. Then he clambered up upon the spongy mass of mushroom heads, trusting to luck that they would sustain his weight. The blackness was intense, so that even the forms of objects before him were lost in obscurity. He moved forward for some ten yards, however, walking gingerly over his precarious foothold. Then he felt rather than saw the opening before him. A body moved below him. Burl raised his spear, and with a yell plunged down on the back of the moving thing, thrusting his spear with all the force he could command. He landed on a shifting form, but his yell of triumph turned to a scream of terror. This was not the yielding body of a slender butterfly that he had come upon, nor had his spear penetrated the creature's soft flesh. He had fallen upon the shining back of one of the huge, meat-eating beetles, and his spear had slid across the horny armor, and then stuck fast, having pierced only the leathery tissue between the insect's head and thorax. Burl's terror was pitiable at the realization, but as nothing to the ultimate panic which possessed him when the creature beneath him uttered a grunt of fright and pain, and, spreading its stiff wing-cases wide, shot upward in a crazy, panic-stricken, rocket-like flight toward the sky. CHAPTER III The Sexton-Beetles