Celyn – A hunter who appears in The Blood of Olympus. She is killed by Orion. Naomi – A daughter of Hecate and another hunter who captures Reyna in The Blood of Olympus. She is killed by Orion. Phoebe – One of the Hunters of Artemis, the best tracker among them. She is suspicious of boys. In The Blood of Olympus, she is revealed to have looked about 14 and to have lived since Artemis first knew Orion. She eventually dies by the hands of Orion. Zoë Nightshade – Zoë was the leader of the Hunters of Artemis. She appears in The Titan's Curse. She was a daughter of Atlas and the sea goddess Pleione. She crafted Riptide (Percy's magic sword), but lost it to Hercules. She was once one of the Hesperides, but she was disowned by her family for helping Hercules. In The Titan's Curse, she is killed by Atlas. In remembrance of her sacrifice, Artemis turns her into a constellation called "The Huntress". Hemithea – Daughter of King Staphylus of Naxos and granddaughter of Dionysus, she was turned into a god by Apollo alongside her sister Parthenos to escape her father's wrath. She joined the Hunters of Artemis, but later gave up the membership and her immortality with her lover Josephine. The two settled and became protectors of Waystation, where Hemithea became known as "Emmy", and adopted Georgina. She has an interest at plants, with which she quickly befriends Calypso. Josephine – Daughter of Hecate, she was a member of the Hunters until she decided to quit with her lover Hemithea, giving up her immortality in the process. The two became protectors of Waystation and adopted Georgina. She is an expert at mechanics and was previously affiliated with mafia in the early 20th century. Hunter Kowalski – A hunter who attempted to spy on Commodus, she is instead captured and enslaved by him. She is freed by Apollo, Meg, and Leo, and joins them and the others defending the Waystation against Commodus' army. Ichthyocentaur – Creatures who resemble centaurs, but with fish tails and horns resembling lobster claws. In The Mark of Athena, the demigods encounter the Ichthyocentaurs who save them from Keto and her children. The Icthyocentaurs also run a Camp for Merpeople Heroes. Aphros – An Ichthyocentaur who is the half-brother of Chiron. He teaches home economics. Bythos – An Ichthyocentaur who is the half-brother