It is also possible that it was even more times, as Hermes visited May Castellan, Luke's mother. It is also said that when Annabeth and Thalia came back with him in a flashback shown by Hestia that Luke has visited him more than once. However, since Luke attended the campers field trip to Olympus during the Winter Solstice (during which all of the Olympians must be present), he should have seen Hermes there as well. Luke claims to have only seen Hermes once in his life when he was 14.Travelers", though Hermes is not the god of medicine, Apollo is. Luke mentions that some of the things that Hermes represents are "Messengers.Percy Jackson and the Olympians The Lightning Thief 3.3.3 Leo Valdez and the Quest for Buford.