Holo

Holo used to be Douglas' assistant and to an extent she still is. Once a regular coatl, a freak accident caused by the mirror scientist transformed her into a being of pure electricity. She can create an appearance for herself by manipulating light and commands immense electric power, but cannot interact with the physical world in any other way.

Douglas has created sound machines that Holo can work through her electricity to speak with. The mirror scientist has ensured her that he's working on a way to restore her to her former state and in turn asks her for her continued assistance. Holo can observe things and go places that are hazardous to any physical being, which is very useful to him.

Outside of their base of operations, the coatl spirit can travel and communicate by creating image projections. She mainly uses this to scare off intruders, as she fears that if Douglas is discovered by her Flight's admins he won't be allowed to continue working on her cure. However, Holo can't shake off the feeling that the mirror isn't being completely honest with her, that he's putting off the thing he promised her. A dreadful thought crosses her mind ever so often: that the accident which put her in her current state was no accident at all, but an experiment.

A successful one.