Greek Fire

Greek fire is a weapon used by the gods and demigods, and is described by Percy as being "one of the most dangerous magical substances in the world".

History
It was an actual weapon used by the Byzantine Empire, which controlled Greecesince Theodosius (Roman Emperor) and soon before the fall of Constantinople. After such success alike substances made by other empires were called Greek fire too. Greek fire was a very dangerous weapon for the mortals that used it, and for the enemies. There were two types of greek fire. The first one was a mixture of chemicals. The second was made by reflecting light off many polished shields(metal) or mirrors. Archimedes was the one who supposedly made greek fire with mirrors. Mythbusters proved this can be done on their show. The chemical Greek fire was a lot more dangerous to make. Archeologists still haven't yet found the recipe for it.

Percy Jackson and The Olympians
Greek fire burns green and can be made used as bombs. Greek fire can also burn underwater as shown in The Last Olympian when Percy goes to Poseidon's underwater palace. Greek fire is described as a swirling green liquid that explodes if dropped on the ground and the container is broken. It is also used as a decoration for Hades' cabin at Camp Half-Blood.

The Sea of Monsters
Hephaestus' cabin used it during the chariot races.

The Battle of the Labyrinth
Greek fire was used to fend off the forces of Kronos who were invading the camp from the Labyrinth. A pack of Dracaenae gets hit by this substance during the battle.

The Last Olympian
Charles Beckendorf used Greek fire to blow up the Princess Andromeda, in order to slow down Kronos on his invasion of Mount Olympus. Percy escaped, but Beckendorf sacrificed himself. Later, the Hephaestus campers used Greek fire to defend the Holland Tunnel during the Battle of Manhattan. Later, before Percy battles Hyperion, he is hit by a Greek fire bomb as he crosses the water. It as no effect, however, as he opens his palm and sucks up the flames.

Known Ingredients

 * Nectar
 * Ambrosia
 * Concentrated Alcohol
 * Burnt Pitch (Burnt Pine Resin)
 * Electricity
 * Sulphur
 * Petroleum (Crude Oil)
 * Naphtha
 * Bitumen
 * Phosphine
 * Saltpeter
 * Quicklime
 * Photophor (Calcium Phosphide)