Disclaimer: I am not the owner of Infernal Devices, Frozen, or Rise of the Guardians.

This chapter is for anyone reading this that is not familiar with Cassandra Clare's books and the world of Shadowhunters. Feel free to skip if you are familiar with it, it is simply an explanation for what the setting is for the story.

Shadowhunters- Half angels that fight against demons. Using a pencil-like tool known as a stele they create runes that can have various enhancements. An example would iratzes which heal wounds, though there are others that they use to give them strength, speed, and strong memories.

Downworlders- Term used for beings associated with the shadow world (world unknown to humans) that are not Shadowhunters. They include the Fair Folk, Werewolves, Warlocks, and Vampires.

Demons- beings that live in other dimensions. They come in various sizes and appearances, but they desire to feed on the life of our world and ultimately destroy it.

Warlocks- Also known as the Children of Lilith, they are the children of a human and a demon. Their demonic blood allows them to use magic for various things and all of them have some sort of mark that identifies them as a demon (Ex: Cat eyes, taloned hands, abnormal coloring.). In addition to that, they are immortal, but as they age, they slowly lose the ability to feel specific emotions until nothing remains at the end of their life.

Vampires- Also known as Children of the Night/Night Children, they are humans with a demon infection. Created from humans that have tasted vampire blood before being killed by them, they feed on blood and are a lot like traditional vampires, dying when out in the sun and unable to walk upon holy ground.

Fair Folk- Also known as Fairies, they are immortal and mysterious beings. Two theories exist about how they are born, but the more common belief is that they are the children of angels and demons. They are unable to tell lies and have incredible beauty, but they know how to manipulate the truth and be incredibly deceitful using only facts. They live in their own realm, under the rule of a queen.

Werewolves- Also known as the Children of the Moon, they are beings with a demon infection much like vampires. They are constantly at war with the Night Children, often theorized to be the result of a feud between the two races of demons that passed on the infections to the original werewolves. A bit from a werewolf has a 1 in 3 chance of making someone a wolf as well and they transform by free will, through being overly emotional, or by being forced to transform during a full moon.

Mundane: Shadowhunter term for humans/non-downworlders.

Parabatai- Term used to describe a partner for a shadowhunter. They go through a big ceremony where they receive permanent runes and take an oath to protect each other at all times. They are meant to protect one another and are able to draw strength from their partner.

The Accords- For this story, they are recently made laws in the Shadow World that protect the Downworlders from feuds with Shadowhunters. There has always been discontent between them, due to Shadowhunters feeling superior to the other races and looking down upon them for having any connection to demons. The Accords are meant to preserve peace between them, though there are still times when they fail to work.

Summary: Elsa Herondale is a shadowhunter, trained to fight demons and protect our world. She fights alongside her parabatai, Anna Carstairs. One night, they begin to investigate the murder of a young human girl, only to become involved in something far bigger than they imagined. Elsewhere, Jack Frost Gray is a young man, who has just lost his Aunt to a tragic illness. With no where else to go, Jack journeys to London where he plans on living with his brother, Aster. However, plans don't always work out as intended and Jack learns that there is something strange about himself and the world he lives in. There are beings that exist that aren't quite human, and he is one of them.

This is just a brief overview of the world created by Cassandra Clare. This story takes place in London in the late 1800s, but since I am not too good with history, feel free to correct me if anything seems too out of place for that era. If you have any other questions about The Infernal Devices, feel free to PM me or leave a question in a review. With that out of the way, the story can now begin! I hope you enjoy, as always, I do not own anything, it is all the property of Disney, Cassandra Clare, and Dreamworks.