The ploy worked, and when Iphigenia arrived she was taken up to the altar where her own father killed her. Or so he thought. At the last moment, Artemis replaced her with a deer and whisked her ...
In the original myth, Iphigenia was the daughter of King Agamenon, who was forced to sacrifice her to appease the goddess Artemis and allow the Greek fleet to sail to Troy for the Trojan War.