And now the Athenians called upon Demetrius because Cassander was besieging their city. So Demetrius sailed to their help with three hundred and thirty ships and a great number of men-at-arms, and not only drove Cassander out of Attica, but actually pursued him in his headlong flight as far as Thermopylae, and then took Heracleia, which joined him of its own accord, and six thousand Macedonians, who also came over to him.
Edition :
Plutarch. Plutarch's Lives. with an English Translation by. Bernadotte Perrin. Cambridge, MA. Harvard University Press. London. William Heinemann Ltd. 1920. 9.
Remark :
long-term consequence: Demetrius drives Cassander out of Attica and puts him to flight.