The fly landed again on the floor. Larger now! Expanding with a horribly rapid growth. Glora flung something—a little wooden rack with a few empty test-tubes in it. The rack struck the monstrous fly, but did not hurt it. The fly stood with hairy legs braced under its bulging body. Its multiple-lensed eyes were staring at the humans. And with its size must have come a sense of power, for it seemed to Alan that the monstrous insect had an abnormal alertness as it stood measuring its adversaries, gathering itself to attack them.

Only a few seconds had passed. Confused thoughts swept Alan. This fly with its growth would soon fill this room. Burst it; burst upward through a wrecked palace; soar out, and by the power of its size alone, devastate this world.

He heard himself shouting. "Father, get back! It's too large! I've got to kill it!"


aunch himself upon it? Wrestle with it in a hand to hand combat? Alan edged around the center table. He was bathed in cold sweat. This thing so horrible! It was too large! Half the length of his own body, now. In a moment it might be twice that! He was aware of Glora pulling at him; and his father rushing past him with a bottle of liquid, and shouting:

"Alan! Run! You and this girl, get out of here! The other room—"

Then Alan saw the things upon the floor! His foot crushed one with a slippery squash! Nameless, hideous, noisome things grown monstrous, risen from their lurking invisibility in the drops of water! Sodden, gray-black and green-slimed monsters of the deep; palpitating masses of pulp! One lay rocking, already as large as a football with streamers of ooze hanging upon it, and a black-ink fluid squirting; others were rods of red jelly-pulp, already as large as lead pencils, quivering, twitching. Germs of disease, these ghastly things, enlarging from the invisibility of a drop of water!

The fly landed with a thud on the center table. The fumes of the shattered bottle of chemicals were choking Alan. He flung himself toward the monster fly, but Glora held him.

"No! Escape! The other room!"