Unconsciously they began to urge their horses to great and yet greater speed, until the Panther recalled them to prudence.
"Slower, boys! slower!" he said.

"We mustn't run our horses out at the start." "And there's a second reason for pulling down," said Ned, "since there's somebody else on the plain." His uncommon eyesight had already detected before the others the strange presence.

He pointed toward the East.
"Do you see that black speck there, where the sky touches the ground ?" he said.

"If you'll watch it you'll see that it's moving.

And look! There's another! and another! and another!" The Panther and Obed now saw the black specks also.