History of the Peloponnesian War

On the Naxians' receiving them within their city, they coasted on to Catana; and when the inhabitants refused to admit them, (for there was in that place a party that favoured the cause of the Syracusans,) they proceeded to the river Terias.

Having spent the night there, the next day they sailed in column towards Syracuse, with the rest of the ships; for ten of their squadron they had sent on before, to sail into the great harbour, and observe whether there were any fleet launched; and to proclaim from their ships,

that the Athenians were come to reinstate the Leontines in their own country, on the ground of alliance and kindred; and therefore that such of them as were in Syracuse should withdraw from it, and without any apprehension join the Athenians, as friends and benefactors.

So when this proclamation had been made, and they had reconnoitred the city, the harbours, and the features of the country which they would have to make the base of their operations in the war, they sailed back again to Catana.