Quest

A quest is a mission usually taken by up to three people to accomplish a goal. Every quest comes with a significant prophecy with it. 
== Description ==
At Camp Half-Blood, a quest can only be given if a camper receives a prophecy from the Oracle. A quest is also one of the few times that a camper will be allowed to leave the safety of the camp, unless a demigod wants to live in the mortal world during the school year.
At Camp Jupiter, the campers must also have a prophecy in order to attain a quest. However, unlike Camp Half-Blood, the prophecy is given by the Auguries by reading the stuffing of plush toys. After a prophecy is given, the matter is then brought before the Senate of New Rome to decide the details, including companions, strategy, and even what supplies will be given to the questers. Another qualification is that the leader of a quest must have the rank of a Centurion or higher.
A rule for quest completion is that at the end of each quest, the demigod in charge must white-glove deliver the item that they have recovered, meaning that it can't simply be shipped via Hermes Express. In the case of Ganymede's Chalice, the god is unable to simply take it from Percy despite his impatience and the time crunch that they are under, and Percy has to physically hand it over to him.
Due to the Pact of the Big Three, their demigod children born after the oath, at least their Greek children, are ineligible for New Rome University as they are never meant to exist. Zeus agrees to allow Percy Jackson admission if he completes three quests for the gods and gets letters of recommendation from each god that he completes one for. However, they all have to be new quests and Poseidon isn't able to give Percy one due to bias as his father. Unlike typical quests, these smaller quests don't require a prophecy, are assigned in response to an ad put out by Percy, and Percy intends to keep them a secret from other demigods.
=== Leader and Companions ===
The person who receives the prophecy is normally considered the leader of the quest. This person is allowed to pick two companions to go with them and help on the quest. However, this person is not required to pick two companions, and can only pick one or none depending on their preference. Sometimes the companions are picked or suggested for the person.
==== Exceptions ====
The leader can also pick more than two people to join them, but this is considered dangerous as three is a sacred number. Any more than three on a quest could result in a catastrophe, including a member of the quest going missing, dying, or the quest failing. An example of this can be shown during the Quest for Artemis, where the total number of questers was five. By the end of the quest however, one member died and another went missing, who was later confirmed to be dead. Another example is during the Quest for Daedalus, where the total was originally four. During the quest, Grover Underwood and Tyson were separated from Annabeth and Percy Jackson. Percy was then separated from Annabeth, but found his way back to camp. Before going to try again, they picked up a mortal girl named Rachel Elizabeth Dare to help, and later a son of Hades named Nico di Angelo, bringing the number back up to three and later to four. During the Quest for Iapetus, Iapetus himself brought the quest, which had started with just Nico and Will Solace, up to three as Nico later realized. After Small Bob complained, Nico named him as their fourth quest member, although both Nico and Will wondered if a ghost cat actually counted as a quest member.
While normally a demigod has to have a prophecy to leave camp, during times of war or danger, a group can leave to complete a mission. These missions however are not considered as actual quests. There are also times when a camper will go mad after receiving a prophecy from the Oracle, but it is unknown what happens to the quest if this occurs.
In order to get into New Rome University, Percy solicits quests from the gods using an ad that he places with the help of Poseidon. While Annabeth and Grover act as his quest mates, they don't receive a prophecy for this smaller quest and, once it's over, Percy tells Annabeth that he doesn't intend to tell anyone at camp about the Quest for Ganymede's Chalice although several of the gods know about it, including Poseidon, Hebe, Iris and Athena.
== Known Quests ==
=== Chronicles of the Dove ===
* Quest for Festus - Led by Aiden Estrada in Dove's Calling. (succeeded)
* Quest for Enyo's Spear - Led by Casey Evans in Book 2. (succeeded)
* Quest for Alyssa - Led by Arthur Davies in Ocean's Demise. (succeeded)
=== War of the Gods ===
* Quest for the Helm - Led by Arthur Davies in Butcher's Return. (succeeded)
* Quest for Triton's Conch - Led by Eric Dillon in Book. (succeeded)
== Smaller Quests ==
There are smaller quests or tasks that demigods are assigned to. These quests don't have or require prophecies.
==== Dove's Calling ====
* Quest to buy a motorcycle - Undertaken by Arthur Davies alone while his fellow demigods rested in the hotel room. (succeeded)
==== Book 2 ====
==== Book 3 ====
==== Book 4 ====
==== Book 5 ====
==== Butcher's Return ====