True to his promise, Achilles soon came to Aulis with his welltrained soldiers, the Myrmidons, and with him came his friend Patroclus. All were now eager to start, and ready to embark; but unfortunately there was no favorable wind to fill their sails and waft them over to Asia Minor.

 
Day after day they waited, and offered sacrifices to the gods, but all in vain. At last they again consulted the oracle, who said that the wind would not blow until Iphigenia, Agamemnon’s daughter, were offered up in sacrifice to Diana, goddess of the moon and the chase, whom this king had once offended.