Now this was how the Athenians had crossed over to Salamis. As long as they expected that the Peloponnesian army would come to their aid, they remained in Attica. But when the Peloponnesians took longer and longer to act and the invader was said to be in Boeotia already, they then conveyed all their goods out of harms way and themselves crossed over to Salamis. They also sent envoys to Lacedaemon, who were to upbraid the Lacedaemonians for permitting the barbarian to invade Attica and not helping the Athenians to meet him in Boeotia; and who were to remind the Lacedaemonians of the promises which the Persian had made to Athens if she would change sides, and warn them that the Athenians would devise some means of salvation for themselves if the Lacedaemonians sent them no help.