They charged almost blindfolded into our ambush.

Now we don't know much about them.
We don't know by any means where the attack is coming.

It is they who are keeping us guessing." "But there are only two fords and two bridges across Bull Run," said Langdon, "and they have got to choose one out of the lot." "Which means that we've got to accumulate our forces at some one of four places, one guess out of four." Harry did not speak at all in a tone of discouragement, but his intelligent mind saw that the Northern leaders had profited by their mistakes and that the Southern general did not really know where the great impact would come.

The Northern scouts and skirmishers swarmed on the other side of Bull Run, and even in the darkness this cloud of wasps was so dense that Beauregard's own scouts could not get beyond them and tell what the greater mass behind was doing.

Harry was summoned at midnight by Colonel Talbot.