Gale

Gale is the leader of the cult of Immortals known as the Shadows. She is maniacal, a psychopath.

Early Life
Not much is revealed about Gale's early life in The Phantom's Tool, but several things point to some clues. The first is that she started the faction called the Shadows, because she is the leader. This leads one to think that she, in fact, was the ancient Immortal who encountered the Egyptian military around the tenth century BC. It was never explicitly explained whether Kaleb is as old or older than Gale, but one could guess that the Shadows came before the Warriors.

Personality
Gale is extremely articulate and manipulative. She has been mentioned to have had direct contact with the Phantom, but this may also be a expression to say she has magnificent gifts. She is quite obviously mentally unstable, most likely suffering from schizophrenia and overall insanity. She is a cold blooded killer, and does not even stop to think about murder.