The Tyrant's Tomb

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