Kimball, whose brigade was in two lines in reserve, brought up the 12th Maine to the support of the 13th Connecticut.
This done, Grover advanced the whole division through the woods to the open fields on their farther or western verge, and seeing the Confederates in force on the knoll beyond, to which they had retired, halted and began to observe and reconnoitre.
To cover the right flank of the last Confederate position Semmes brought up the _Diana_, whose injuries of the day before he had during the night partly made good by repairs. Her 30-pounder Parrott now opened a slow fire without great effect other than to add to Grover's caution.
Shortly after eight o'clock Mouton rode up. To him Taylor turned over the command of the force confronting Grover, and then rode into Franklin to direct the retreat. By half-past nine Green with the rear-guard moved out on the direct road toward New Iberia. The last of Green's troopers had not quitted the little town at the upper end when the first of Weitzel's entered at the lower end.
Some time passed before Mouton knew of this. Then for a brief space his peril was great; but fortunately for him the unlooked-for situation of affairs raised a momentary doubt in the minds of Green's pursuers. Should they go to the right or to the left? And where was Grover? After questioning prisoners and townspeople, Banks directed Weitzel to follow by the cut-off road and Emory to move up the bayou. The interval, short as it was, enabled Mouton to fall back quickly, and taking a by-way across country to strike into the cut-off road beyond the northern outskirts of Franklin. Not an instant too soon, for in the confusion Sibley had fired the bridge over the Choupique and across the blazing timbers lay Mouton's last hope of escape. Hardly had his men reached the north bank in safety when Weitzel's advance guard came in sight down the road. They galloped to the bridge only to find it impassable.
Before retiring the Confederates blew up the _Diana_ and applied the match to all their transport steamers on the Teche save the hospital boat, the _Cornie_, which loaded with the sick and wounded of Bisland fell into the hands of the Union forces. Captain Semmes, who had but the day before left his battery to command the _Diana_, was taken prisoner, with all his crew. He and Weitzel had been friends and classmates at West Point; he now refused the offered courtesies of his captor, and a few hours later, finding himself rather loosely guarded, cleverly managed to regain his liberty.