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Percy Jackson sending Luke Castellan an Iris Message .

An Iris Message is a type of video message that is used by gods and demigods to communicate with others using a rainbow. The service is managed by the Greek goddess of the rainbow, Iris.

Iris Messaging

To send a message, one must first find or create a rainbow with Mist and then throw a golden drachma or anything with a good price into it, saying or thinking very deeply:

"Oh Iris, goddess of the Rainbow, please accept my offering."

In The Son of Neptune, when they meet Iris, she tells them that the cloud nymph Fleecy will send an Iris message for them. Fleecy gives them a "direct line" with the saying:

"Oh Fleecy, do me a solid. Show me (name and place of person)."

Percy sending Tyson an Iris Message.

This is usually said aloud, though it works non-verbally as well. Then the caller says the name or location of the intended recipient. The way to end an Iris Message is to wave one's hand through the Mist, disconnecting the signal. Iris Messages can also be sent to gods, such as when Percy contacted Mr. D. This is odd, because in The Titan's Curse, Percy wonders if it is even possible.

In The House of Hades, Gleeson Hedge is shown to keep, amongst other things, a stack of golden drachmas, a flashlight and a glass prism for making rainbows which leaves him prepared to send a lot of Iris-messages.

Variations

In The Battle of the Labyrinth, Percy receives a "collect" Iris message, asking him to deposit drachmas in the image for each five minutes of conversation. This happens only once and the sender was dead, so it is not clear whether this is a unique event.

In The Last Olympian, Hermes uses an Iris message to quickly flick through mortal newscasts like a TV.

Iris, goddess of rainbows.

In The Lost Hero, Medea calls for an Iris Message with a diamond instead of a coin. This probably means that an Iris message can be activated using any object of value. Greeks use drachmas to activate Iris Messages because this was the Ancient Greek currency. It is implied in The Son of Neptune that Roman heroes do not use Iris Messages (neither Frank nor Hazel had ever heard of this method of communication) since Iris is her Greek counterpart, and by then Romans used more advanced methods, like giant eagles.

In The Tyrant's Tomb, the Ceremony to Call for Divine Help's last step is that the summoning "must be uttered through the rainbow", requiring the use of an Iris-message in the ceremony.

Failed Iris Messages

In The Son of Neptune, Percy tries to contact Annabeth Chase via Iris Message, but the Iris Message can't get through. It is implied that this is because Percy can't clearly remember the person he is trying to reach as Hera stole his memory and Hera herself had blocked the message.

Throughout The Trials of Apollo, Iris-messaging fails as well as all other means of demigod communication due to the interference of Triumvirate Holdings. In The Tyrant's Tomb, this is revealed to be because of the Triumvirate harnessing the powers of the soundless god Harpocrates. After he is convinced to willingly fade by Apollo, Reyna Ramírez-Arellano and Meg McCaffrey, Iris-messaging is restored along with all other methods of communication.

Percy Jackson and the Olympians

The Lightning Thief

During their quest, Annabeth Chase and Grover Underwood use a nozzle at a car wash to establish an Iris-message to Camp Half-Blood. The two explain Iris-messaging to a confused Percy Jackson and make contact with Luke Castellan as Chiron is currently busy. The trio report on their progress before the message is broken when their time on the nozzle runs out.

The Sea of Monsters

Percy and Annabeth contact Chiron through an Iris-message to apprise him of their progress. However, due to the antics of the Party Ponies, they have trouble hearing each other.

After being captured by Luke on the Princess Andromeda, Percy spots a rainbow and tosses his last drachma into it before silently praying to Iris and loudly announcing Dionysus at Camp Half-Blood. Percy tricks Luke into confessing to poisoning Thalia's Pine Tree before revealing that Dionysus and all of Camp Half-Blood heard him through the Iris-message. As a result, Chiron is exonerated and Luke angrily breaks the connection. Shortly afterwards, Chiron comes to Percy, Tyson and Annabeth's rescue, explaining that Iris is an old friend of his and had allowed him to listen in on Percy's message to Camp Half-Blood.

The Titan's Curse

Percy talks with Tyson and his mother through Iris-messages.

After being cornered by Dr. Thorn the Manticore, Percy contacts Camp Half-Blood through an Iris-message, but gets Dionysus, much to his dismay. After Percy asks for his help, the god kills the manticore and saves them.

The Battle of the Labyrinth

The spirit of Bianca di Angelo uses Iris-messages from the Underworld to show Percy what her brother is up to.

Later, Annabeth tells Percy that she received an Iris Message from Eurytion that Nico has returned to the Labyrinth.

The Last Olympian

Chiron uses an Iris-message to show the progress of the gods' battle with Typhon.

After the battle, Hermes uses an Iris-message to quickly flick through various mortal newscasts like a TV.

The Heroes of Olympus

The Lost Hero

Medea contacts Jane with an Iris-message in order to taunt Piper McLean about her father, using a diamond instead of a drachma.

Thalia Grace later uses an Iris-message to summon her brother to the Wolf House to rescue Hera.

The Son of Neptune

An amnesic Percy attempts to contact Annabeth via Iris-message without success, but is blocked by his amnesia and Hera.

Hazel Levesque contacts Reyna Ramírez-Arellano to warn her about the Giant Army, inadvertently calling her while Reyna is in the bath. It's revealed that the Romans have never heard of Iris-messaging, instead relying on other methods of communication. In this case, Iris herself gives Hazel instructions for how to make contact with the cloud nymph Fleecy giving her a "direct line." Iris also admits that Fleecy is actually the one who currently handles most Iris-messages and not the goddess herself.

After his memories begin returning, Percy tries another Iris-message without success.

The Mark of Athena

When Leo attacks New Rome under the control of eidolons, Hazel tells the other members of the Seven to Iris-message her when they're safely away so that they can rendezvous. However, after Festus detects Hazel and Arion running below the ship, Frank instead shapeshifts to fly down and tell her in person instead.

Percy later tells the others that he sent Tyson an Iris-message to take Ella the harpy to Camp Half-Blood rather than leave her in the hands of the Romans with her knowledge of the Sibylline Books.

It's mentioned that while Percy was missing, Annabeth had spent hundreds of golden drachmas on Iris-messages to every friendly spirit, demigod or monster that they had ever met in search of him without any luck.

When the Romans arrive in Charleston, Annabeth orders Piper to use the Argo II's galley sink to Iris-message Jason to get back to the ship quickly. After returning to the ship's deck, Piper reports that she got the message through although it was kind of fuzzy and that Jason is already on his way back.

After stealing Achelous' horn, Piper Iris-messages Leo to have the Argo II ready for a quick takeoff upon their return.

Gleeson Hedge Iris-messages his wife Mellie to check on her while he is with the Seven.

The House of Hades

Gleeson Hedge Iris-messages his wife Mellie to check on her while he is with the Seven.

When the Seven discuss Iris-messaging Reyna Ramírez-Arellano, Hedge states that they aren't working very well currently and have horrible reception. Hazel states that they have already tried calling her without success and that some magic is interfering, possibly Gaea. It is much harder to call the Romans, causing Hazel to speculate that they are shielding themselves.

Frank Zhang later finds Hedge communicating with Mellie through another Iris-message as the Argo II arrives in Epirus. Frank notices that the coach's nightstand contains a bottle of water, a stack of golden drachmas, a flashlight and a glass prism for making rainbows, causing Frank to realize that the coach had come prepared to send a lot of Iris-messages.

The Trials of Apollo

The Hidden Oracle

Chiron reveals to Apollo and Meg McCaffrey that Iris-messaging is down. When Meg asks what Iris-messaging is, Apollo quickly explains that it's two-way visions and a method of communication overseen by the rainbow goddess. Although Apollo dismisses it as Iris just being flighty, Chiron reveals that all other forms of demigod communication are also down and that it's just one of many problems that they're facing. It's later revealed that Triumvirate Holdings are responsible.

The Dark Prophecy

While discussing warning Camp Jupiter about Caligula's impending attack, Calypso mentions that all forms of demigod communication are still down. As a result, Leo volunteers to go on Festus to warn them in person.

The Tyrant's Tomb

Apollo, Reyna Ramírez-Arellano and Meg McCaffrey discover that the Triumvirate is using the soundless god Harpocrates to block all demigod communications. After they convince him to willingly fade, Iris-messaging and all other methods of communication are restored.

Apollo's summons to Diana for help in the Battle of San Francisco Bay is carried to his sister through an Iris-message as per the instructions in the Sibylline Books.

Gallery

Appearances

Caller

Recipient

Reason

Book

Percy Jackson, Grover Underwood, and Annabeth Chase Luke (though intended for Chiron) Reporting about their quest. The Lightning Thief
Percy Jackson and Annabeth Chase Chiron Reporting about their quest and asking for advice. The Sea of Monsters
Percy Jackson Dionysus So the camp can hear Luke's plans to reform Kronos. The Sea of Monsters
Percy Jackson Tyson To talk. The Titan's Curse
Percy Jackson Sally Jackson Telling her that he'll be coming home. The Titan's Curse
Percy Jackson Dionysus Calling for help and to report about the Ophiotaurus. The Titan's Curse
Bianca di Angelo Percy Jackson Showing him Nico's current situation. The Battle of the Labyrinth (twice)
Eurytion Annabeth Chase To warn her that Nico has returned to the Labyrinth and has been communicating with King Minos. The Battle of the Labyrinth
Chiron Typhon (his location) To show the Head Counselors the status of the gods' battle with the giant. The Last Olympian
Hermes Mortal newscasts To check on mortal reactions to the Battle of Manhattan The Last Olympian
Medea Jane To weaken Piper's confidence and reveal how her father was captured. The Lost Hero
Thalia Grace Jason Grace To summon him to the Wolf House to free Hera. The Lost Hero
Percy Jackson None Tried to call Annabeth, but it was blocked by Hera. The Son of Neptune
Hazel Levesque Reyna Ramírez-Arellano Called her while she was taking a bath (unintentionally), Hazel warned her about the Giant Army. The Son of Neptune
Percy Jackson Tyson To tell him to take Ella to Camp Half-Blood. The Mark of Athena
Annabeth Chase Every friendly spirit, demigod and monster she's ever met. To search for Percy while he is missing The Mark of Athena
Piper McLean Jason Grace To warn him to return to the Argo II fast. The Mark of Athena
Piper McLean Leo Valdez To warn him to have the Argo II ready for a quick takeoff. The Mark of Athena
Gleeson Hedge Mellie To check in on her while he is with the Seven. The Mark of Athena and The House of Hades
Hazel Levesque Reyna Attempted to call her without success possibly due to interference from Gaea. The House of Hades
Apollo Diana To summon her help in the Battle of San Francisco Bay. The Tyrant's Tomb
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