of the Twelfth the standard of Camp Jupiter, a gold icon of an eagle on top of a pole, symbolizing the god Jupiter
Earthborn a race of six-armed giants, also called Gegenes
Elysium the paradise to which Greek heroes are sent when the gods grant them immortality
Erythraean Sibyl a prophetess who presided over Apollo’s Oracle at Erythrae in Ionia
eurynomos (eurynomoi, pl.) a corpse-eating ghoul that lives in the Underworld and is controlled by Hades; the slightest cut from their claws causes a wasting disease in mortals, and when their victims die, they rise again as vrykolakai, or zombies. If a eurynomos manages to devour the flesh of a corpse down to the bones, the skeleton will become a fierce undead warrior, many of whom serve as Hades’s elite palace guards.
Euterpe the Greek goddess of lyric poetry; one of the Nine Muses; daughter of Zeus and Mnemosyne
fasces a ceremonial ax wrapped in a bundle of thick wooden rods with its crescent-shaped blade projecting outward; the ultimate symbol of authority in ancient Rome; origin of the word fascism
Fates three female personifications of destiny. They control the thread of life for every living thing from birth to death.
faun a Roman forest god, part goat and part man
Faunus the Roman god of the Wild. Greek form: Pan
Field of Mars part battlefield, part party zone, the place where drills and war games are held at Camp Jupiter
First Titan War also known as the Titanomachy, the eleven-year conflict between the Titans from Mount Othrys and the younger gods, whose future home would be Mount Olympus
Forum the center of life in New Rome; a plaza with statues and fountains that is lined with shops and nighttime entertainment venues
fuerte Spanish for strong
fulminata armed with lightning; a Roman legion under Julius Caesar whose emblem was a lightning bolt (fulmen)
Gaea the Greek earth goddess; wife of Ouranos; mother of the Titans, giants, Cyclopes, and other monsters
Gamelion the seventh month of the Attic or Athenian calendar that was used in Attica, Greece, at one time; roughly equivalent to January/February on the Gregorian calendar
Germani bodyguards for the Roman Empire from the Gaulish and Germanic tribes
Greek fire a magical, highly explosive, viscous green liquid used as a weapon; one of the most dangerous substances on earth
Grove of Dodona the site of the oldest Greek Oracle, second only to Delphi in importance; the rustling of trees in the grove provided answers to priests and priestesses who journeyed to the site. The grove is located in Camp Half-Blood Forest and accessible only through the myrmekes’ lair.
Hades the Greek god of death and riches; ruler of the Underworld. Roman form: Pluto
Harpocrates the Ptolemaic god of silence and secrets, a Greek adaptation of Harpa-Khruti, Horus the Child, who was often depicted in art and statuary with his finger held up to his lips, a gesture symbolizing childhood
harpy a winged female creature that snatches things
Hecate the goddess of magic and crossroads
Hector a Trojan champion who was ultimately slain by the Greek warrior Achilles and then dragged by the heels behind Achilles’s chariot
Helios the Titan god of the sun; son of the Titan Hyperion and the Titaness Theia
Hephaestus the Greek god of fire, including volcanic, and of crafts and blacksmithing; the son of Zeus and Hera, and married to Aphrodite. Roman form: Vulcan
Hera the Greek goddess of marriage; Zeus’s wife and sister; Apollo’s stepmother. Roman form: Juno
Hermes the Greek god of travelers; guide to spirits of the dead; god of communication. Roman form: Mercury.
hippocampus a sea creature with a horse’s head and a fish’s body
Horatius Cocles a Roman officer who, according to legend, single-handedly defended the Sublician Bridge over the Tiber River from the invading Etruscan army
Hyacinthus a Greek hero and Apollo’s lover, who died while trying to impress Apollo with his discus skills
immortuos Latin for undead
Imperial gold a rare metal deadly to monsters, consecrated at the Pantheon; its existence was a closely guarded secret of the emperors
Iris Greek goddess of the rainbow
jiangshi Chinese for zombie
Julius Caesar a Roman politician and general whose military accomplishments extended Rome’s territory and ultimately led to a civil war that enabled him to assume control of the government in 49 BCE. He was declared “dictator for life” and went on to institute social reforms that angered some powerful Romans. A group of senators conspired against him and assassinated him on March 15, 44 BCE.
Juno the Roman goddess of marriage; Jupiter’s wife and sister; Apollo’s stepmother. Greek form: Hera
Jupiter the Roman god of the sky and king of the gods. Greek form: Zeus