The Old Rex

The Old Rex is a tyrannosaurus that hunts near the Daughters, and is a recurring antagonist. He was responsible for the death of the Heretics of Cydonia, and has met the Daughters of Earth Colony three times in battle. Each time, he has suffered some injury, and taken at least one life:

Eyes in the Dark Sisters of Battle Rex on the Beach
 * Died: Chell; Soola (slain by Ress)
 * Injury: Blinded in right eye (by Ress)
 * Died: Jarissy (assist by Ress)
 * Injury: Talons severed (by Quasha)
 * Died: Nisja of Titan
 * Injury: Mouth blasted open in explosion (Nisja), tail atomized (Ress)

Upon eating Nisja, the rex ingested her Eridian nanites. In "The Long, Brightly-Starred Night", the rex's injured parts were repaired by mechanical replacements, making him a cyborg bent on the destruction of the Daughters.

He is not scheduled to appear in the third Orphans book, Raptor Zulu.