With Athens on the verge of starvation, Aristion grew less popular by the day. Greek deserters informed Sulla that Aristion was neglecting the Heptachalcum (part of the city wall). Sulla immediately sent sappers to undermine the wall. Nine hundred feet of wall was brought down between the Sacred and Piraeic gates on the southwest side of the city. On 1 March 86 BC, after five months under siege, a midnight sack of Athens began. After the taunts of Aristion, Sulla was not in a mood to be magnanimous. Blood was said to have literally flowed in the streets, it was only after the entreaties of a couple of his Greek friends (Midias and Calliphon) and the pleas of the Roman Senators in his camp that Sulla decided enough was enough. After setting fire to large portions of the city, Aristion and his forces fled to the Acropolis where they had gathered a store of supplies over the preceding few weeks. At the same time, Archelaus abandoned the city of Piraeus and concentrated his forces in the citadel of the city. In a bid to stop an escape by Archelaus who would surely join his reinforcement army sent by Mithridates VI elsewhere in Greece, Sulla left the taking of the Acropolis to Gaius Scribonius Curio Burbulieus. In any case, Sulla, not having a navy, was powerless to stop the escape of Archelaus who was able to rejoin his relief army. Sulla then advanced into Boeotia to take on Archelaus's armies and remove them from Greece. Before leaving the area however, he burnt the city of Piraeus to the ground. While Aristion and his party were able to stave off the Roman attackers for some time, they eventually surrendered after their water ran out and after they had heard of the Pontic defeat at the Battle of Chaeronea (Perhaps late Spring). They were all executed shortly after their surrender. After routing the Pontic army at the Battle of Chaeronea, Sulla had another victory at the Battle of Orchomenus the following year. Sulla and Mithridates VI of Pontus finally got together in 85 BC to sign the Treaty of Dardanos, concluding the First Mithridatic War. Sulla's army took Athens on the Kalends of March, in the consulate of Marius and Cinna, February 12 86 BC. The siege of Athens was a long and brutal campaign, Sulla's rough battle hardened legions, veterans of the Social War thoroughly devastated the city.