History of the Peloponnesian War

The same winter ending and the spring now approaching, Brasidas made an attempt upon Potidaea. For coming by night, he applied his ladders and was thitherto undiscerned. He took the time to apply his ladders when the bell passed by, and before he that carried it to the next returned. Nevertheless, being discovered, he scaled not the wall, but presently again withdrew his army with speed, not staying till it was day.

So ended this winter, and the ninth year of this war written by Thucydides.