Through the humid swamp, spotted with its foul giant brood, that moved, yet never seemed to move, he rode, panic knocking at his ribs. The sinking sun bore down with it his hopes, and as the shadows grew more slanting, the sense of silent life around him grew more threatening. A breeze with a tang of cold in it swept over the swamp and the grip of danger tightened. Now, in the distance, the masses could be seen to drag their slow length along, but near at hand, all was still.
“They’re only waiting,” he thought, “waiting for the dusk.”
From under a huge flat block that bore a fair resemblance to a giant tortoise-shell, a wicked head with lidless green eyes and a turtle beak darted out.
The animal he bestrode leaped as though a snake had struck. And, with the leap came a new thing. Even as the boy watched, the rough mane dwindled and a smooth red-brown coat glinted in the darkening sun. The neck grew longer and more pliant and the swift lumbering gallop gave place to the leaping bounds of some creature that man had never ridden before. Perry’s only thought was to go on—on—no matter what he rode, to go on—and out of that swamp where the monstrous reptiles were. But the strangeness of the marvel held him when he saw in the center of the forehead of the Thing, just in front of the ears, a gleam of white like a milk-tooth.
“It’s—it’s a horn,” he muttered.
The sun touched the rim of the horizon. At the same instant, with a sucking sound, the vast bulk of a Diplodocus squirmed up from the slough and poised its ungainly head, as though to see. A leaping Compsognathus loomed black against the sky. Noiseless, but menacing, a winged Pteranodon, twenty-one feet from tip to tip of wing, soared heavily above him. A pigmy in a world of giant monsters, the boy raced on, speeding from—he knew not what, to—he knew not whither.
The sense of terror from the monstrous brood became more keen as a closer peril grew. His knees ached almost beyond endurance from the strain of trying to keep his seat, for no horsemanship could avail upon such a steed as that which he was riding. The long jerking leaps, though they covered ground amazingly, seemed to drag him inside out at every stride. The red-brown neck stretched far ahead, and gleaming in the dull-red dusk jutted the single horn, spirally twisted like a kudu’s and lengthening even as he looked at it.
Suddenly, without an instant’s warning, the beast threw back his head. The gleaming horn jerked to within a few inches of the boy. The lad paled.
“Next time—” he said.
What could he do next time?