History of the Peloponnesian War

After this Mindarus took all his ships, including those which had been at Abydus and were now united with his fleet, eighty-six vessels in all, and for that day invested Elaeus;

but when it would not yield they all sailed back to Abydus. The Athenians at Eresus, on the other hand, misled by their scouts and never imagining that the enemy could sail past them unobserved, were assaulting the walls at their leisure; but when they learned the truth they abandoned Eresus at once and hastened with all speed to the defence of the Hellespont.

And they captured two of the Peloponnesian ships, which fell in with them at that moment, having put out into the open sea too boldly in their pursuit. A day later they reached Elaeus and cast anchor; then they brought thither the ships at Imbros that had taken refuge there and spent the next five days preparing for the battle.