He was relieved by Col. Laurence M. Keitt, who commanded the fort until it was abandoned on September 7. Gen Hagood wrote a book titled Memoirs of the War of Secession, in which he states that the constant bombardment from the Union guns had unearthed such large numbers of the Union dead buried after the assault of July 18, and the air was so sickening with the smell of death, that one could no longer stand to be in the fort. The constant bombardment caused Confederate soldiers who were killed during the siege to be buried in the walls of Wagner, and they were also constantly being unearthed.