.:The Accords:.
Peace negotiations with Downworlders.

.:The Chronicles of Prydain:.
A five-volume series of fantasy children's books by Lloyd Alexander. The Disney film "The Black Cauldron" is based on the books.

.:The Circle:.
A group of Shadowhunters lead by Valentine. The Circle was formed because of Valentine's hatred of Downworlders and the Accords.

.:The Clave:.
The ruling and governing body of the Shadowhunters and, in most cases, Downworlders. The Accords are in place to ensure harmonious living between these two groups. When laws are broken, the Clave is called upon for action.

.:Downworlders:.
Creatures who share the Shadow World with Shadowhunters. Hodge describes them as having an “uneasy peace” (CoB 78) with them. Vampires, werewolves, warlocks, faeries, etc.

.:Dungeons & Dragons:.
A fantasy role-playing game that Simon deeply enjoys. Most people associated with D&D are considered "geeks," but the game in fact takes time, dedication, and strategy that most people don't actually understand.

.:The Golden Bough:.
The book Clary picks up in City of Bones. It is a study of magic and religion by Sir James George Frazer.

.:Ifrit:.
A warlock with no magic.

.:Iratze:.
A healing rune.

.:Marks:.
The tattoo-like designs on a Shadowhunter's skin to aid them, protect them, and heal them. Some are permanent and others are only used once before fading away. When they fade, they turn to faint silver scars. If a Mundane is marked they could die or be turned into a Forsaken. See also “Runes.”

.:The Mirror:.
The only of the three Mortal Instruments not currently in Valentine's possession.

.:The Mortal Cup:.
A small cup (slightly dented around the rim) that can be used to create Shadowhunters. It was missing from the time of the Uprising until CoB when Clary finds it in the Ace of Cups tarot card her mother painted for Madame Dorothea. It is currently in Valentine's possession. It is the only of the three Mortal Instruments that doesn't correspond to the Imperial Regalia of Japan, though the fact that the cup has jewels around its edges could be the link to the sacred jewel. Cassandra Clare says that the cup comes from "all sorts of Cup legends."

.:The Mortal Sword:.
Mainly used in Shadowhunter trials to find out if someone is telling the truth, the Mortal Sword also gives the possessor power over a large majority of demons. As seen in the opening of CoA, Valentine, who currently has the Sword, has control over the Greater Demon Agramon, the fear demon. Cassandra Clare says that the Sword draws from many famous swords, especially the sword from the Book of Genesis.

.:Mundane:.
Also “Mundie.” A person of the human world or someone without the ability to see the Shadowhunters, demons, fairies, etc.

.:Parabatai:.
A pair of warriors who fight together. Their bond is closer than that of two brothers. Michael Wayland and Robert Lightwood were parabatai, as are Jace and Alec.

.:Runes:.
Shadowhunters have special runes that mean different things that aid with healing and battle. Runes are drawn onto the skin to create Marks.

.:Sensor:.
A small, black object that almost resembles a cell phone. It picks up demonic frequencies to aid a Shadowhunter in finding demons. In CoB, ingesting a Sensor kills the Ravener demon.

.:Seraph blades:.
Silver tube-like weapons that evolve into swords and blades with strength depending on the Angel they're named for.

.:Shadowhunter:.
Demon hunters who carry the duty of ridding the world of demons and other malevolent creatures who roam the earth. They are unseen by humans. See also “Nephilim.”

.:Simon's Band:.
Simon is in a band with Matt and Eric. They have gone through many names, which seems to be their main production. Some of the names they have considered are Sea Vegetable Conspiracy, Rock Solid Panda, and Lawn Chair Crisis. Clary suggested the name "The Sexist Pigs" in jest, as well as "The Fortuitous Occurrences."

.:Stele:.
A silver cylindrical object used for Marking Shadowhunters.


Special Thanks to Mundies.net