"Yes, sir; I see," said I.

"Now, it is quite possible that he has taken a new position and nearer
Richmond. It is even possible that he has advanced a considerable
distance nearer Richmond; but it is not likely, as he has been put where
he is for the purpose of observing our right and rear until he is
reënforced. On the 23d, we occupied Mechanicsville, and our possession
of that place may have so interfered with or so threatened Branch's
plans that he will make some movement. The truth is, to be frank with
you, he is in a false position, and ought to return to Hanover Junction
at once and unite there with Anderson's force, which has begun its march
from Fredericksburg to Richmond, or else he ought to join Johnston's
army without delay. I am telling you these things because I want you to
understand the situation thoroughly, in order to help you, and because I
think I can trust you."

"Well, General?"

"Knowing our plans, you will be better able to decide what to do in a
critical moment."

"Yes, sir."

"Now, what we want to know is the true point upon which our attack
should be directed. If we march straight on Hanover Court-House, and
find that the rebels have left that place and have moved further south,
we shall be attacking their left instead of their right, and they can
retreat toward Richmond. In case they have moved south, we must not
march on the Court-House; we must attack their right, wherever that may
be. Now, that is what you must do for us: find out where Branch's right