Challenger Quadrant
The Terran Knowledge Bank
The Challenger Quadrant lies in the Avalon Sector and consists of the Avalon, Babel, Baroda, Britannia, Cibola, Dallas, Dis, Elena, Gomorrah, Haven, Jericho, New Atlantis, Panama, Sheol, Sodom, Tanis, Ubar and Xualla systems.
The Challenger Quadrant hosts the sector capital, Avalon. It played almost no role in the Terran-Kilrathi War.