When Epicydes and Hippocrates had occupied Syracuse, and had alienated the rest of the citizens with themselves from the friendship of Rome, the Romans who had already been informed of the murder of Hieronymus, tyrant of Syracuse, appointed Appius Claudius as Propraetor to command a land force, while Marcus Claudius Marcellus commanded the fleet. These officers took up a position not far from Syracuse, and determined to assault the town from the land at Hexapylus, and by sea at what was called Stoa Scytice in Achradina, where the wall has its foundation close down to the sea. Having prepared their wicker pent-houses, and darts, and other siege material, they felt confident that, with so many hands employed, they would in five days get their works in such an advanced state as to give them the advantage over the enemy. But in this they did not take into account the abilities of Archimedes; nor calculate on the truth that, in certain circumstances, the genius of one man is more effective than any numbers whatever. However they now learnt it by experience. The city was strong from the fact of its encircling wall lying along a chain of hills with overhanging brows, the ascent of which was no easy task, even with no one to hinder it, except at certain definite points. Taking advantage of this, Archimedes had constructed such defences both in the town, and at the places where an attack might be made by sea, that the garrison would have everything at hand which they might require at any moment, and be ready to meet without delay whatever the enemy might attempt against them.