against the earth, they, too, took up the task of watching.

The earth was frozen hard now, but toward morning they saw the fog
rising again.

"It will cover the river, the far shore, and what's left of the town,"
said Dalton, "but what do we care? They'll be protected by it as they
advance on the bridges, but they wouldn't dare move through it to attack
us here on the heights."

"Here's the dawn again," said Harry. "I can see the ghost of the sun
over there trying to break through, but as there's no wind now the fog's
going to hang heavy and long."

Breakfast was served once more to the waiting army on the heights,
and then the youths in gray saw that the Union army, having let the
night pass, was beginning to cross the river. When the dawn finally
came many regiments were already over and the wheels of the heavy cannon
were thundering on the bridges. But the Confederate army lay quiet on
the heights, although before morning it had drawn itself in somewhat,
shortening the lines and making itself more compact.

"Look how they pour over the bridges!" said Harry, who stood glass to
eye. "They come in thousands and thousands, regiments, brigades and
whole divisions. Why, George, it looks as if the whole North were
swarming down upon us!"

"They're a hundred and twenty thousand strong. We know that positively,
and they're as brave as anybody. But we're eighty thousand strong,
just sitting here on the heights and waiting. Harry, they'll cross