Series Interactions



Percy Jackson and the Olympians series and The Heroes of Olympus series, collectively known as the Camp Half-Blood series, are two series of books written by Rick Riordan. Both of the stories take place in the same universe. In the third book Sadie's mother hints that there will be more adventures for the Kanes in the future dealing with Setne, rival magic, and other gods.

First Series: Percy Jackson and The Olympians

 * The Lightning Thief
 * The Sea of Monsters
 * The Titan's Curse
 * The Battle of The Labyrinth
 * The Last Olympian

Second Series: The Heroes of Olympus

 * The Lost Hero
 * The Son of Neptune
 * The Mark of Athena
 * The House of Hades
 * The Blood of Olympus

Relationship with Kane Chronicles
The series makes occasional references to the Camp Half-Blood series, as it takes place in the same world.

The Red Pyramid

 * Amos states that Manhattan has its own set of gods and that they must be kept separate from Egyptian gods. He says this while looking at the Empire State Building, the current home of Mount Olympus.
 * Thoth makes a vague reference to the Percy Jackson and the Olympians series when he mentions Hermes, who he states is nothing like him. This hints that he as seen Hermes and that the Greek and Egyptian gods might interact. This statement, however, might not be reasonable if he is inside a host, since the host isn't him. If this is the case, he might be comparing their true forms. He may not have a host, which would more reasonable as he should he able to inhabit a place of learning in his true form like Anubis can in a place of death.
 * Anubis seems to have the same appearance as Nico di Angelo from the Camp Half-Blood Series. Coincidentally they have the same nickname, "Death Boy".
 * In the epilogue of the graphic novel, Sadie is seen wearing a Camp Half-Blood T-shirt.

The Throne of Fire

 * Carter catches a glimpse of a winged horse flying around Manhattan, and recalls what Amos said about Manhattan and its gods. The horse may have been Blackjack while Percy was following Zoë in The Titan's Curse. In The Son of Sobek, Carter believes that the winged horse is a Pegasi.
 * Carter makes another allusion to Percy Jackson, when he's drowning and wishing he had sea god powers.
 * The Roman ghosts that appeared later in the story mentioned the Roman gods Jupiter, Pluto, and Vulcan. Later, when they were destroyed by Ptah, he mentioned they went on to whatever afterlife awaits them, referring to the Underworld.

The Serpent's Shadow
Notice: ''Before The Serpent's Shadow, there was no hard evidence that the Kane Chronicles existed alongside the Heroes of Olympus world, with the modern Egyptians existing hidden underneath the skin of the Greeks from the eyes of Rome. In the book, Rick Riordan left a note reading 'final ending', but has not confirmed if this is the final ending of the Kane Chronicles, or the entirety of the Kane story.''
 * Lacy and Drew from Camp Half-Blood make an appearance at a school dance that Sadie attends. In fact, Lacy even mentions that they go to a summer camp together and Drew is a tyrant there as well as at school.
 * Sadie's mom claims there will be other gods and rival magic Sadie and Carter will encounter in the future since the Egyptian Gods have temporarily retreated.
 * Walt explains to Sadie that in the world of the Gods (i.e., both the Camp Half-Blood series and The Kane Chronicles) that a person who dies and goes to the Underworld, they go to the one they believe in. ex: if a believer is mummified, yet believes in the Greco-Roman Underworld, they will go to Hades'/Pluto's Underworld.
 * At the end of the book, Sadie says that they're picking up unidentified magical energy coming from Long Island. Camp Half-Blood is in Long Island.
 * Rick Riordan left the book on a note that read 'final ending', but there might be another appearance of the Kanes in future books he writes.

The Son of Sobek
The Son of Sobek is a short story featuring both Percy Jackson and Carter Kane, with the audiobook narrated by Rick Riordan himself. In it, Percy Jackson and Carter Kane combine forces to defeat a common enemy. See The Son of Sobek for a full summary.

The Staff of Serapis
The Staff of Serapis is another short story featuring Sadie Kane and Annabeth Chase. Annabeth and Sadie combine forces to defeat Serapis, the Graeco-Egyptian god.

Future Short Story
When asked in a recent Q&A session in Maine, during the tour for The Throne of Fire, author Rick Riordan was asked whether he would ever do a crossover series with the Kanes and Percy’s world. His answer was:


 * "I don’t know. It’s an interesting idea, but for now I think it’s best to keep the worlds separate to avoid utter confusion. Again, so many ideas, but each one takes a long time to write!"

Trivia

 * If the worlds of Percy Jackson and the Kane Chronicles collide, the Egyptians would be the second other set of gods that Camp Half-Blood meet.
 * Drew and Lacy in The Serpent's Shadow are both daughters of Aphrodite, the Greek goddess of Love and Beauty.
 * Rick Riordan has said that he intentionally left the time which "The Son of Sobek" happens vague.
 * However, in The Staff of Serapis, it is revealed that the stories happened after the quest to defeat Gaea and her giant sons on the Argo II, since Annabeth mentioned her friend Frank showing her a quote from Sun Tzu’s The Art of War before the story.