The Persians took up a position on the hill opposite the acropolis, which the Athenians call the Areopagus, and besieged them in this way: they wrapped arrows in tar and set them on fire, and then shot them at the barricade. Still the besieged Athenians defended themselves, although they had come to the utmost danger and their barricade had failed them. When the Pisistratids proposed terms of surrender, they would not listen but contrived defenses such as rolling down boulders onto the barbarians when they came near the gates. For a long time Xerxes was at a loss, unable to capture them.