Too Long; Didn't Read
TOMMY TRAVERS and James Dodd, of the Travers Antarctic Expedition, crash in their plane somewhere near the South Pole, and are seized by a swarm of man-sized beetles. They are carried down to Submundia, a world under the earth's crust, where the beetles have developed their civilization to an amazing point, using a wretched race of degenerated humans, whom they breed as cattle, for food.
Bullets, shrapnel, shell—nothing can stop the trillions of famished, man-sized beetles which, led by a madman, sweep down over the human race.