Aeschylus has taken an oath before the Greek gods: build a temple worthy of Zeus, alone, using only the strength the gods grant him for the purpose. If he succeeds, his father's city will surpass even Athens in prosperity. But Sokobos' story belongs to the tradition of Greek tragedy, and in that tradition, the plans of men — however faithfully executed — have a way of meeting complications that the gods did not mention when they made the offer.