As much of the circus was constructed magically, many things were built physically, especially if it involves metals like iron and silver. That is where the Engineer comes in. Being only partially fae, he is able to handle materials usually seen as dangerous to the fae, and use them to maintain the illusion of the circus and the possibility for escape. Its favorite thing to construct are robots, of which it has hundreds of smaller ones who are built to support it in building things.

The Engineer is one of the soulshattered fae, but his issue is entirely physcial. He lost control of both of his arms at the shoulder and chose to get them surgically removed. Now he has two sets of hands: ghost hands and mechanical hands. Both are used to handle different material, and he doesn't see how they make him look "scary".

Unlike the other showy members of the circus, the Engineer prefers to keep to himself and stay in what can be considered the basement, making it hard to interact with him as a guest. Only way to find him is to find a way backstage and down, a process that becomes progressively more dangerous the closer to him you get.