Artemis could feel a difference between his mind and the others. They had something different. An alien energy. It was difficult to explain a feeling without senses, but for some reason it seemed to be blue. A blue plasma, electric and alive. Artemis allowed this rich feeling to flow through his mind and was instantly jolted by its energy.
Magic, he realized. Magic is in the mind. Now this was something worth knowing. Artemis retreated to his own mind-space, but he took a
sample of the blue plasma with him. You never know when a touch of magic would come in useful.

The Lost Colony, Chapter 13