|“||The spirit of the wild must pass to all of you now. You must tell each one you meet: if you would find Pan, take up Pan's spirit. Remake the wild, a little at a time, each in your own corner of the world. You cannot wait for anyone else, even a god, to do that for you.||”|
Pan once had a musical contest with Apollo. King Midas, one of Pan's followers, judged that Pan was the winner, despite Apollo being the god of music. In anger, Apollo gave Midas the ears of a donkey.
Battle against Typhon
Pan helped Zeus in the fight against Typhon. While the recovered Zeus was imprisoned by Typhon and held in a cave guarded by the dragon Delphine, Pan started shouting out loud and caused panic in the dragon, who ran away. This action gave Zeus the chance to escape and to go after Typhon.
Trials of Psyche
One day, while napping after a three-day party, Pan found Psyche crying in the nearby river after she was abandoned by Eros. Unaware of what happened, he assumed she has love problems and suggested that she should pray to Eros to help her. Pan left after Psyche started crying again, but she decided that maybe she should do that so he could forgive her.
In the series
Two-thousand years before the series, Pan told Lysas to spread the word of his death in Ephesos. The announcement was was accepted by most, except for the satyrs and nature spirits. Most satyrs dream of finding Pan and apply for a searcher's license through the Council of Cloven Elders so they can go looking for Pan. No satyrs ever return from the quest because of the Golden Fleece which attracts them instead by giving out similar nature smell and feel. Grover Underwood had lost his father, grandfather and uncle, to the quest.
Pan is mentioned as Grover needs to help Percy Jackson on his quest or he will not be able to get a searcher's license to find Pan. After successfully completing the quest, Grover leaves to search for Pan.
Grover's quest for Pan is not going well because of the Golden Fleece. The fleece gives off the same scent as the wild so it attracts satyrs to the island of Polyphemus where they are eaten. After bringing the fleece back to Camp Half-Blood, Grover sets out on the quest again in hope of finding Pan.
While passing through New Mexico, Grover senses a strong presence and passes out saying something about the blessing of the wild. At the same time a Erymanthian boar flies out of the bushes attacking the groups enemies and later giving the group a ride west. Percy asks what Grover means and he says that he felt the presence of Pan. Grover thinks that Pan speaks to him through coffee when later on, Grover tells Percy that he heard Pan's voice say "I await you."
During the quest in, Grover and Tyson split away from the group because Grover senses Pan. Later Percy, Annabeth Chase, Rachel Elizabeth Dare, and Nico di Angelo find them at a riverbank in the labyrinth. The group follows the river to a cave in the Carlsbad Caverns in New Mexico, where they find Pan lying on a bed. He fades in and out as he dies. He is surrounded by extinct animals that fade into dust as he dies. Pan tells Grover that he should have died two thousand years ago, but the satyrs prevented his passing. He says that it's his time to go and for Grover to carry on his wisdom to the world. He individually addresses Percy, Annabeth, Tyson, and Rachel, but does not address Nico. As Pan fades, some of his energy goes into everyone in the room with a little more going to Grover.
The group gets back to camp and are forced to battle Kronos' army. During the battle Grover releases a fierce scream which causes Kronos' army to flee in terror. This was an ability of Pan. When Grover goes before the council the satyrs do not believe him, but Dionysus and Chiron do. The satyrs vote to exile Grover, but Chiron and Dionysus (whose vote counts for two since he is a god and is upset so they do not challenge it) vote to keep him. Since the council reaches an indecision, it is disbanded, allowing Grover to remain.
Pan's spirit is carried on in Grover who is joining the satyrs together to protect the wild places that are left in the world. He is "replaced" as Lord of the Wild by Grover.
Once being freed from the Nymphaeum, and rejuvenated by Jason Grace, Percy, and Piper McLean, Hagno plans on exploring the world and visiting Pan. She comments that Pan wouldn't allow nature to become tainted, but Percy doesn't have the heart to tell her that Pan had faded before she leaves.
Pan was depicted as being extremely wise, calm, respectful, and benevolent. He was known to be an extremely good judge of character, shown by his judgement of Grover's quest to find him. He was reasonable, as he didn't maliciously blame Rachel for her father's damage to the environment.
In The Battle of the Labyrinth, Pan was described as an old satyr, with brilliant sky-blue eyes and a pointy beard. His hair was white and curly and the goat fur on his legs was frosted with gray. He had enormous, curved glossy brown horns. His laughter was described as sounding wonderful, like the "first breeze of springtime, filling the whole cavern with hope."
Pan had the standard powers of a god.
- Panic Cry: Pan's signature and most powerful ability. According to Percy, it is the most horrible sound that he had ever heard, like a "brass trumpet magnified a thousand times—the sound of pure fear." In The Battle of the Labyrinth, the panic cry scares most of Kronos' army invading Camp Half-Blood. Pan passed down this ability to Grover. He also scared away the Titans' armies attacking Olympus.
- Nature Animation: As shown in The Titan's Curse, Pan was able to make artificial images of animals come alive. This was often accompanied by a wave of nausea by satyrs or a breeze of springtime by humans. His power was the only thing keeping these animals alive, for once he faded, they turned to dust.
- Woodland Magic: Pan presumably had the same powers that satyrs have used throughout the series, but on a larger scale, which include healing, with wild animals, and give them sanctuary.
- Control over Nature: Pan had divine authority authority and absolute control over things belonging to nature, including trees, bushes, rocks and dirt.
- Control of Animals: Pan had divine authority over animals, which he could understand. In The Battle of the Labyrinth, he commanded the Erymanthian Boar, a dodo bird, a mammoth and a tiger-wolf (quite possibly a Thylacine/Tasmanian tiger).
- Reed Pipes: Pan wore a set of reed pipes around his neck. He used the music generated by these pipes to channel his signature cry and woodland magic.
- His attributes are the reed pipes and the syrinx.
Faunus is the Roman form of Pan. When Pan turns into Faunus, he becomes more disciplined, militaristic, and warlike. It is unknown if Faunus still exists after Pan faded away.
- Pan is a moon surrounding Saturn (planet) that was discovered in 1990 and is named after him.
- The 4450 Pan, an asteroid, is named after him.
- Pan is one of five immortals who are mentioned to have faded, the others being Helios, Selene, Cottus, and Gyges.
- So far, he is the only being in the series that has actually been shown fading.
- One of his sons, Tarquitus, was killed by Aeneas.
- In some stories, Pan predates Hermes and was raised alongside Zeus himself.
- In Greek mythology, Pan sired a group of satyrs called the Panes or Paneides, who are half goat.
- Pan appears a lot of times in poems normally representing the whole paganism or nature. The most famous one is from Elizabeth Browning, who wrote this poem to "remember" the poets of Greek Mythology were gone for good.
- There is a modern theory that the message of Pan's passing was actually a misinterpretation: worshippers of the Mesopotamian god Tammuz would have cried "Tammuz Panmegas tethneke!" (the all-great Tammuz is dead!), which was understood as "Tammuz! Pan megas tethneke!" (Tammuz, Pan is dead!), Tammuz then interpreted as the name of a fisherman whom the message was told.
- In Roman myths, he is a god of prophecy.
- His Egyptian equivalent is Min.