From Halopedia, the Halo wiki
At least 3
The Escala system is a stellar system situated among humanity's Outer Colonies. It has a planetary system consisting of at least three planets, including Escala III. The system was seemingly unscathed by the Covenant throughout the Human-Covenant War.
List of appearances
- Halo: Escalation (First appearance)
- Halo: Escalation, Issue #4