"Means a creek," said the Little Giant, "a creek mebbe a leetle bigger than them make-believe creeks we've crossed. I like the plains. They kinder git hold o' you with thar sweep an' thar freedom, but I ain't braggin' any 'bout thar water courses. I've seen some o' the maps in which the rivers cut big an' black an' bold an' long 'cross the plains, same ez ef they wuz ragin' an' t'arin' Ohios an' Missips, an' then I've seen the rivers tharselves, more sand than water. An' I love fine, clear streams, runnin' fast, but you hev to go into the mountains to git 'em, whar, ez you've seen, Will, thar are lots o' sparklin' leetle ones, clean full o' pure water, silver, or blue, or gold, or gray, 'cordin' to the way the sun shines. But I say ag'in when braggin' o' the great plains I keep dark 'bout the rivers an' lakes." The cottonwoods were six or seven miles away, and when they reached them they found all of the Little Giant's predictions to be true. The stream, a full foot in depth, flowed between banks higher than usual, and its waters, cold and sweet, were entirely devoid of alkali. Following it some distance, they found sloping banks free from the danger of quicksand, and crossed to the other side, where they made a camp among the cottonwoods. Will, weary from the long ride, went to sleep as soon as dusk came, but he was awakened somewhere near the middle of the night by the hand of Boyd on his shoulder. "What is it?" he asked, sitting up and not yet wholly awake. "Quiet!" whispered Boyd. "Reach for your rifle, and then don't stir. The Sioux are out on the plain to the west, in front of us. Tom, who was on watch, heard 'em, and then he saw 'em. There's a band of at least fifty on their ponies. We think they know we're here. Likely they heard our animals moving about." The lad's heart contracted. It seemed a hideous irony of fate that, after having escaped so many dangers by their skill and courage, blind chance should bring such a great menace against them here upon the plains. He drew himself from his blankets, and propping himself upon his elbows pushed forward his repeating rifle. Then he changed his mind, put down his rifle again, and brought to his eyes the precious glasses, with which he seldom parted. He was able to see through the cottonwoods and in the moonlight the Sioux band, about a third of a mile away, gathered in a group on the crest of a swell, strong warriors, heavily painted, nearly all of them wearing splendid war bonnets. They were sitting on their ponies and two, whom Will took to be chiefs, were talking together. "What do you make out, young William?" asked the Little Giant. "A conference, I suppose." "Then they know beyond a doubt that we're here," said Boyd. "They must have heard the stamp of a horse or a mule. It's bad luck, but we've had so much of the good that we've got to look for a little of the bad. What more do you see through those glasses of yours, Will?"