50 Fun Facts About The House of Hades

Which immortal, who once nursed Percy back to health, does Leo fall in love with in The House of Hades?

Calypso was meant to be released at Percy's request once the Titan war ended, yet she is still stranded when Leo arrives.

Which monster, who dragged Annabeth and Percy into Tartarus, does Percy destroy with his sword in The House of Hades?

Arachne ambushes the pair in the pit; in the previous book Annabeth had tricked her into weaving the very trap that bound her.

What kind of skeletal pet, named Small Bob, does Bob the Titan adopt in Tartarus in The House of Hades?

A kitten most of the time, Small Bob can swell into a full-grown saber-toothed cat whenever he wishes.

Which deity withholds a scepter until Nico admits he once had a crush on Percy in The House of Hades?

Cupid stays invisible, even as Nico sets skeleton warriors on him, and appears only after the confession; a Guardian reviewer called the book's handling of it subtle and effective.

Which bronze dragon, figurehead of the Argo II, does Piper wake by voice to beat a goddess in The House of Hades?

Festus was reduced to a head after a crash landing in an earlier book, yet once roused his fire burns the goddess's two brothers.

Which god's blessing leaves Frank taller and more muscular after a battle with monsters in The House of Hades?

Mars is Frank's father, and the blessing also silences the god's Greek and Roman voices that had been arguing inside Frank's head.

Which river of the Underworld had wiped the memory of Bob the Titan before the events of The House of Hades?

The Lethe is the river of forgetfulness; Percy had thrown the hostile Titan into it during a fight, leaving him gentle and childlike.

Which daughter of Bellona flies from New York to Greece on a pegasus to find the crew in The House of Hades?

Reyna answers a message from Annabeth, who believes only a Roman returning a long-lost statue to the Greeks can stop the camps going to war.

Which power to alter what others see as real does Hazel master after meeting a goddess in The House of Hades?

The Mist becomes Hazel's weapon in the final fight, where she conjures a maze of illusion and drops a sorceress through a trapdoor.

Which ancient goddess do Percy and Annabeth fool by posing as tourists with a brochure in The House of Hades?

Nyx is so stung at being left out of their guide that she summons her children, whose darkness is so deep even she cannot see through it.

Which Titan, renamed Bob after losing his memory, guides Percy and Annabeth across Tartarus in The House of Hades?

Iapetus turns up when he overhears the pair reminiscing about him, though the pit slowly restores the memories Percy once wiped.

What job had the lord of the dead given Bob the Titan before he rejoins Percy in The House of Hades?

A janitor in the Underworld is the humble post the amnesiac Titan held, far from his old rank as Lord of the West.

Which goddess shows Hazel a northern route past hostile mountains if she learns to bend reality in The House of Hades?

Hecate also reveals that she once led Hazel's mother to the spell that summoned Pluto, and she later fights beside the crew.

Which daughter of the north wind attacks the Argo II and hurls Leo far away in The House of Hades?

Khione is the snow goddess who betrayed Jason, Piper and Leo in an earlier book, and this time she brings her two brothers along.

Which satyr chaperone of the Argo II volunteers to escort a giant statue home at the end of The House of Hades?

Coach Hedge has his own reason to hurry back: his wife Mellie, a cloud nymph, is expecting their baby.

Which statue does Annabeth ask a Roman to carry to Camp Half-Blood as a peace offering in The House of Hades?

The Athena Parthenos rides in the hold of the Argo II until Nico offers to help take it home, in the hope of preventing a war between the camps.

Which augur, left in command of the Roman legion, defies orders not to attack Camp Half-Blood in The House of Hades?

Octavian, a descendant of Apollo, takes charge when his fellow leader leaves on a quest, and his warmongering only grows.

Which Roman rank does Jason hand to Frank mid-battle so Frank can lead a ghost army in The House of Hades?

Praetor was Jason's own office at Camp Jupiter, but having chosen the Greek side he could no longer control the scepter that raised the dead.

Which affliction strikes Annabeth in Tartarus as a curse from the Cyclops Polyphemus in The House of Hades?

Blindness is the Cyclops's revenge for the time Annabeth used her invisibility to fool him, and Bob the Titan is able to cure it.

On which mythical island does Leo land after an attacker banishes him from the Argo II in The House of Hades?

Ogygia is the prison of a Titan's daughter who backed the losing side in an ancient war, and Leo swears on the River Styx to come back for her.

Into what does a farming god in Venice turn Nico, out of hatred for the boy's father, in The House of Hades?

A corn plant is what Nico stays until Frank wins the god a new serpent for his chariot, after which the god also heals a poisoned Hazel.

What kind of monster is Kelli, who once posed as a cheerleader and is crushed by Bob in The House of Hades?

An empousa slain by Annabeth in an earlier book, Kelli leads a pack toward the Doors of Death hoping to get even with Percy.

Whose sphere, a prized invention that Leo carries, is stolen when thieves raid the Argo II in The House of Hades?

Archimedes's sphere matters so much to Leo that he chases the thieves to their hideout and beats them with a homemade flash-bang grenade.

Which Oracle of Delphi hands the Roman legion's leader a plea for help from Annabeth in The House of Hades?

Rachel Dare delivers it in New York with Grover Underwood at her side; the message says only one Roman can carry a certain statue home.

Which Roman emperor's scepter, able to raise dead legionnaires, do Jason and Nico retrieve in The House of Hades?

Diocletian's palace at Split on the Croatian coast is only where the search starts: the scepter has been carried off by a god, and the demigods leave a note at the palace for a Roman ally.

Which cow-like monsters does Frank slaughter across Venice, earning a god's blessing, in The House of Hades?

Katobleps fall to Frank one after another until the last is turned into a serpent, the payment a farming god wanted for his chariot.

In which Italian city do monkey-like thieves raid the Argo II and steal Leo's sphere in The House of Hades?

Bologna is where the thieves trap Jason in a net beside the Fountain of Neptune before Leo tracks them to their hideout.

To which island do borrowed storm spirits tow the damaged Argo II in The House of Hades?

Malta is reached only after the damaged ship has sat docked for several days at the palace of a wind god, who lends the spirits.

Which peaceful giant, exiled to Tartarus for refusing to fight the gods, aids Percy in The House of Hades?

Damasen was created to oppose the god of war yet turned out gentle, and in the end he charges into battle against the pit itself.

Which city's queen became Hecuba, the hellhound at the side of the goddess of magic in The House of Hades?

Troy's queen was transformed when the Trojan War ended, and the goddess now keeps her close as one of two animal companions.

Which mountain range can the Argo II not cross because mountain gods hurl boulders at it in The House of Hades?

The Apennines are home to ourae, primordial mountain gods loyal to Gaea, and the damage forces Leo to turn the ship away.

Which reader-voted prize did The House of Hades win as the best middle grade and children's book of its year?

The Goodreads Choice Award capped a launch in which the novel sold about 350,000 copies in its first week and topped bestseller lists.

Which monster is a gentle giant cursed to slay afresh every day in the swamps of Tartarus in The House of Hades?

A drakon from ancient Maeonia is his daily foe until Annabeth persuades him to change his fate; he tames the beast and rides it to war.

What food does a farming god give the demigods to guard against poison in the temple in The House of Hades?

Barley cakes are the god's parting gift once Frank has earned his help, and they let the crew survive the poison they must drink to enter.

Which Greek hero once owned the bronze astrolabe that Leo takes from a thieves' hoard in The House of Hades?

Odysseus lost it to the thieves as an old man, and the device later proves vital when Leo tries to find his way back to a hidden island.

Which giant, born to oppose the goddess of magic, guards the mortal Doors of Death in The House of Hades?

Clytius falls only when the goddess herself joins the demigods, since a giant can be killed only by a god and a hero working together.

What holds the Doors of Death in place until Percy and Annabeth's group destroys them in The House of Hades?

Chains anchor the Doors on the pit side, and once they are cut Bob stays behind among hordes of monsters to defend the Doors while the pair escape.

In which region of Greece do the demigods find the temple that gives The House of Hades its title?

Epirus was, by tradition, home to a real oracle of the dead beside the River Acheron, where the faithful came to speak with their ancestors.

Which bandit, beaten long ago by Theseus, waylays the Argo II off Croatia with a giant turtle in The House of Hades?

Sciron meets the same end twice: Hazel shoves him off his cliff, just as the old hero did, and the turtle gobbles him up.

Which sorceress, a daughter of the sun Titan Helios, duels Hazel with illusions in The House of Hades?

Pasiphaë resents the gods for making her bear the Minotaur while her husband Minos sits as an Underworld judge, so she sides with the giants.

Which wind god keeps switching between Greek and Roman forms while hosting Jason at his palace in The House of Hades?

Notus rules the south wind and summer, and he settles on his Greek form only once Jason decides which camp he truly belongs to.

Which goddess tries to poison Percy in Tartarus, only for Percy to turn the poison on her, in The House of Hades?

Akhlys is the goddess of misery, and her terrified flight gives Annabeth a first glimpse of a darker side of Percy.

Which winged spirits of Tartarus punish Percy with the dying curses of enemies he has slain in The House of Hades?

The arai resemble the Furies but are not limited to three, and each one Percy cuts down unleashes another stored grudge on him.

Which god of farming demands a new serpent for his chariot before he will help Frank's friends in The House of Hades?

Triptolemus is tied to Demeter, and once the deal is done he takes off in his chariot to spread knowledge of agriculture across the world.

Which thieving brothers, caught by Hercules and turned into monkeys by Zeus, rob the Argo II in The House of Hades?

The Kerkopes are spared by Leo on one condition: they must cross to America and disrupt the Roman force marching on Camp Half-Blood.

Which Titan, once turned into a tree by Grover, guards the Doors of Death in Tartarus in The House of Hades?

Hyperion stands watch with a brother Titan until the pit's own god appears and obliterates them both as a show of power.

At which real ancient Greek temple do the reunited demigods fight their last battle in The House of Hades?

The Necromanteion was sacred to the lord of the dead and Persephone, and its name means oracle of the dead.

With which crossover short story was the first chapter of The House of Hades released months before the novel?

The Son of Sobek teams Percy with the magician Carter Kane against a monstrous crocodile, and two more crossover stories followed it.

By which power, shared with Hazel, does Nico bring the crew safely to the surface in The House of Hades?

Shadow travel belongs to children of the Underworld's ruler, and Nico soon offers to use it again to help carry a giant statue home.

Which inventor's legendary maze is restored by a sorceress allied with the giants in The House of Hades?

Daedalus built the Labyrinth for King Minos, and Hazel answers its return by conjuring an illusory version of her own.