As they sailed farther from the coast, the sky darkened and more stars came out.
Percy studied the constellations—the ones Annabeth had taught him so many years ago.
“Bob says hello,” he told the stars.
The Argo II sailed into the night.
Glossary
Achelous a potamus, or river god
Aegis Thalia Grace’s terror-inducing shield
Aeolus god of all winds
Akhlys Greek goddess of misery; goddess of poisons; controller of the Death Mist; daughter of Chaos and Night
Alcyoneus the eldest of the giants born to Gaea, destined to fight Pluto
Alodai twin giants who attempted to storm Mount Olympus by piling three Greek mountains on top of each other. Ares tried to stop them, but he was defeated and imprisoned in a bronze urn, until Hermes rescued him. Artemis later brought about the giants’ destruction when she raced between them in the form of a deer. They both took aim with their spears, but missed and instead struck each other.
Aphrodite the Greek goddess of love and beauty. She was married to Hephaestus, but she loved Ares, the god of war. Roman form: Venus
r /> Aquilo Roman god of the North Wind. Greek form: Boreas
Arachne a weaver who claimed to have skills superior to Athena’s. This angered the goddess, who destroyed Arachne’s tapestry and loom. Arachne hung herself, and Athena brought her back to life as a spider.
arai female spirits of curses; wrinkled hags with batlike wings, brass talons, and glowing red eyes; daughters of Nyx (Night)
Archimedes a Greek mathematician, physicist, engineer, inventor, and astronomer who lived between 287–212 BCE and is regarded as one of the leading scientists in classical antiquity; he discovered how to determine the volume of a sphere
Ares the Greek god of war; the son of Zeus and Hera, and half brother to Athena. Roman form: Mars
argentum silver; the name of one of Reyna’s two metallic greyhounds that can detect lies
Argo II the fantastical ship built by Leo, which can both sail and fly and has Festus the bronze dragon as its figurehead. The ship was named after the Argo, the vessel used by a band of Greek heroes who accompanied Jason on his quest to find the Golden Fleece.
Argonauts in Greek mythology, a band of heroes who sailed with Jason on the Argo, in search of the Golden Fleece
Ariadne a daughter of Minos who helped Theseus escape from the Labyrinth
Arion an incredibly fast magical horse that runs wild and free, but occasionally answers Hazel’s summons; his favorite snack is gold nuggets
astrolabe an instrument used to navigate based on the position of planets and stars
Athena the Greek goddess of wisdom. Roman form: Minerva
Athena Parthenos a giant statue of Athena, the most famous Greek statue of all time
augury a sign of something coming, an omen; the practice of divining the future
aurum gold; the name of one of Reyna’s two metallic greyhounds that can detect lies
Auster Roman god of the South Wind. Greek form: Notus
Bacchus the Roman god of wine and revelry. Greek form: Dionysus
ballista (ballistae, pl. ) a Roman missile siege weapon that launched a large projectile at a distant target (see also scorpion ballista)
barracks the living quarters of Roman soldiers
Bellona a Roman goddess of war
Boreads Calais and Zethes, sons of Boreas, god of the North Wind
Boreas god of the North Wind. Roman form: Aquilo
braccae Latin for trousers
Bunker Nine a hidden workshop Leo discovered at Camp Half-Blood, filled with tools and weapons. It is at least two hundred years old and was used during the Demigod Civil War.
Cadmus a demigod whom Ares turned into a snake when Cadmus killed his dragon son
Calypso the goddess nymph of the mythical island of Ogygia; a daughter of the Titan Atlas. She detained the hero Odysseus for many years.
Camp Half-Blood the training ground for Greek demigods, located on Long Island, New York
Camp Jupiter the training ground for Roman demigods, located between the Oakland Hills and the Berkeley Hills, in California
catapult a military machine used to hurl objects
Celestial bronze a rare metal deadly to monsters
centaur a race of creatures that is half human, half horse
centurion an officer of the Roman army
Ceres the Roman goddess of agriculture. Greek form: Demeter
charmspeak a blessing bestowed by Aphrodite on her children that enables them to persuade others with their voice