Leaving now this bird's eye view of what was happening, let us go back a little and follow Corse's movements. He had arrived at Rome from Atlanta September 27th, with two of his brigades, the third being already there,--and thereafter had been busy, in accordance with his general instructions and frequent communications from Sherman, in organizing and equipping his command for the special work entrusted to him, which was in effect to reconstruct and perfect the earthworks and defences, so as to make Rome impregnable to assault, and at the same time to act as a corps of observation, constantly feeling out for and spying after the enemy, and ready, should occasion offer, to strike a heavy blow in any direction where he should be discovered. It was isolated, difficult and responsible service, and a dangerous one, since the first contact might be with Hood's whole strength, but of the very first importance to Sherman, whose ignorance of Hood's schemes and inability to anticipate his movements, perplexed and harassed him, and upon Corse he mainly relied to discover, by any or all means, the movements and presence of the enemy. Corse was well equipped for such service. He had acted as inspector on Sherman's staff, and stood high with his chief, both in personal regard and professional estimation. Of medium height, erect, active and alert, ambitious, combative, decided, of sound judgment and indomitable courage, the task of holding Allatoona could have fallen into no better hands. As Grant, giving over a page of his memoirs to mention of the battle, says of him, "Corse was a man who would never surrender." On the third of October Sherman sent him a warning to be wary, that Hood was meditating some plan on a large scale, and at noon of the 4th Corse received the message already mentioned, by signal from Vining's to Kenesaw, thence to Allatoona, and thence by wire to Rome, summoning him instantly to the rescue of the threatened garrison. Corse had fortunately already telegraphed to Kingston that cars be sent him. The train in moving to Rome was partly derailed, but the single engine and about twenty cars were ready by dark.