Agis and Cleomenes

Such being their resolve, and Ptolemy, as chance would have it, making a visit to Canopus, in the first place word was sent about that Cleomenes had been set free by the king; and next, in view of a custom which the king had of sending presents and a banquet to those who were going to be released from imprisonment, the friends of Cleomenes in the city prepared and sent in to him an abundance of such things, thus completely deceiving the guards, who thought the king had sent them.

For Cleomenes made a sacrifice and gave the guards a bountiful share of his provisions, and then took his place at table with garlands on his head and feasted with his friends. We are told, too, that he set out upon his enterprise sooner than he had intended, because he learned that a slave who was privy to it had passed the night outside in company with a mistress. So fearing that his plans would be revealed, when noon came and he perceived that his guards were sleeping off their wine, he put on his tunic, opened the seam over his right shoulder, and with drawn sword sprang forth, accompanied by his friends, who were likewise arrayed, thirteen in number.