Aeacus is the king of Aegina and an ally of Athens. When king Minos asks Aeacus to help him in his war against Athens, Aeacus refuses. Not only is he Athens’s ally, but Aegina has just managed to recover from a terrible plague that decimated their population. During this plague, Aeacus prayed to Jupiter for help. The next night, Aeacus dreamed that thousands of ants became people. The next morning, Aegina teemed with new citizens that Aeacus called the Myrmidons. Aeacus gathers his new army to assist Cephalus in Athens’s war against Minos.