As though drawn by a magnet Alan turned to watch it. It landed on the wall. Alan was aware of Dr. Kent rushing with trembling steps to a shelf where bottles stood. Glora was stricken into immobility, the blood draining from her face.
The fly flew again. It passed directly over Alan. Its body, with a membrane sac of eggs, was now as large as his head; its wide-spread transparent wings were beating with a reverberating drone.
Alan flung a bottle which was on the table beside him. It missed, crashed against the ceiling, came down with splintering glass and spilling liquid. Fumes spread chokingly over the room.
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!"
Launch 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!