This landmark is the famous attraction the main characters visit during their stopover in St. Louis
Gateway Arch (St. Louis Arch)
This is the next major destination the trio must reach after leaving St. Louis.
LOS ANGELES (SANTA MONICA)
The trio manages to contact Chiron long-distance by creating an Iris-message inside this location
CAR WASH
After jumping from the Arch, Percy discovers that his clothes and belongings undergo this strange condition once he steps out of the Mississippi River.
STAYING DRY
While visiting the Gateway Arch in St. Louis, Percy encounters Echidna, who boasts that this terrifying creature—part lion, part goat, and part serpent—is her grandest child.
CHIMERA!!!
This mode of transportation is considered safer for demigods than taking a plane or a bus
TRAIN
The mortal news media blames this person for the destruction at the St. Louis Arch
PERCY JACKSON!
Ares asks Percy, Annabeth, and Grover to retrieve his forgotten item from an abandoned amusement park.
HIS SHIELD
During their train ride through Kansas, Grover uses his reed pipes to play music for this specific purpose to help calm the group's nerves.
MAKING THE PLANTS GROW
The Chimera travelled into the Arch disguised as a small chihuahua, accompanied by this monster, known as the "Mother of Monsters".
ECHIDNA
It becomes much harder for Percy, Annabeth, and Grover to travel openly in public due to this reason.
PERCY'S PICTURE ON THE NEWS
Ares wears leather, rides a heavy motorcycle, and gives off an intense vibe of this emotion.
CONFLICT/VIOLENCE/ANGER
Before Echidna reveals her true identity, she tricks the park visitors on the elevator by pretending her Chimera is this type of pet.
CHIHUAHUA
To survive the blast from the Chimera and escape the burning top of the Arch, Percy takes a leap of faith into this body of water.
MISSISSIPPI RIVER
While submerged in the Mississippi River, Percy makes this astonishing physical discovery about himself.
BREATHING UNDERWATER
After escaping the trap, Ares rewards the trio with a backpack full of supplies and a ride on a truck heading to this city.
LAS VEGAS
While riding in the back of a diner booth, Ares shows off this custom modification on his motorcycle's gas tank.
FLAME PAINT JOB/SKULL-SHAPED HEADLIGHT
During his fight atop the Arch, Percy feels this emotion toward his father when his sword fails to affect the monster, and no help arrives.
ABANDONED/BETRAYED
An underwater spirit messenger gives Percy a warning and tells him to visit this location before entering the Underworld.
SANTA MONICA BEACH
The trap at the Waterland amusement park was originally designed by this god to embarrass his unfaithful wife and Ares
HEPHAESTUS
The mechanical metallic spiders that swarm Percy and Annabeth inside the Thrill Ride O' Love trap were designed specifically to trigger this character's severe phobia.
ANNABETH