The fresco in the middle of the right wall (pictured left) shows Hercules fighting Achelous who kidnapped Deianira, the daughter of Althaea and King Oeneus and sister of Meleager. Despite assuming many forms, including that of a bull, Achelous was eventually beaten. In the struggle Hercules broke off one the monster's horns which nymphs fashioned into the Cornucopia, the horn of plenty.