"Brontosaurs!" he cried, standing there for the moment quite unconscious of his own peril from the onward-thundering monsters. Brontosaurs! Monsters out of earth's dawn, thundering through a Twentieth Century city! Mighty dinosaurs of the Mesozoic age, the most terrible creatures ever to appear on this planet, bridging the gap of millions of years to crash through the little town! Rowan stood rigid as they thundered on toward him, heard their mighty, throaty bellows as they overtook the fleeing mob, and then saw them trampling over that mob as bulls might trample ants, smashing them beneath gigantic feet, annihilating them with sweeps of the huge tails, thundering, crashing on. And now they were within yards of him and he found himself staggering back from the street into a crevice between two buildings at its side. The next moment the great monsters had thundered past him, their gigantic tread shaking the earth beneath him, and in that moment he glimpsed clearly the creatures who rode upon their backs. Small and manlike shapes were these, but lizardlike, too, their limbs and bodies green-scaled, their extremities armed with sharp talons, their heads thick and conical and featureless, except for the big, dark, disklike eyes and the wide-fanged mouths. And as they thundered past on their gigantic mounts he saw one raise an arm with a white globe in its grasp, saw a beam of pale and feeble light which flickered out from that globe and struck buildings to right and left, buildings which burst into great masses of flame as the pale beam touched them. And now the great creatures had swept past him and from farther up the street came their bellowing clamor, pierced by sharp, agonized screams from the tiny running figures there. Around Rowan flames were shooting up in great roaring bursts, and beyond he saw one of the great brontosaurs rearing up against the side of a building, saw that building's walls collapse and crash beneath the huge beast's weight. From right and left came other mighty crashes throughout the city, and an unceasing, thunderous clamor of sounds, the deep and terrible bellowing of the dinosaurs as they crashed across the town, the screams of their victims trampled beneath giant feet, the hiss of the flickering beams, the roar of bursting flames. Down the street, too, was the rumbling of more of the great brontosaurs, racing up the street and past the spot where Rowan crouched, galloping gigantically to the attack.