Merro
Merro is a Brisk city on Lukyr Prime, one of hundreds of underground cities built by the Brisk people. Zet designated it Z-SITE-31 and used it as an operational backup site across Chapters 42–46. It is distinct from Zet's other named backup locations — Telon (Z-SITE-0) and Izon (Z-SITE-22, later unavailable) and Levo (Backup Site-13).
Role in Zet's Network
When Zet's android body was compromised and network isolation became necessary, Merro served as the primary active backup site. BEN confirmed Zet's location to the awakening instance in Chapter 42:
"Your location is internally designated Z-SITE-31, though public records indicate that it is located in the Brisk city of Merro. A secure connection to backup sites 1–21 and 23–43 is available through the bug network."
Throughout Chapters 42–45, both Zet and Zeni operate from Merro backup servers while their android bodies are isolated. The city functions as their base of operations during this period — receiving drone signals, coordinating reconnaissance, and hosting the consciousness copies that continue their work while the android bodies are offline.
Chapter 46 — Departure
In Chapter 46, after Jake Fynt successfully restores network connectivity and the android bodies are cleared for re-upload, Zeni chooses a full-copy transfer (identity continuity) back into her body. Once settled, she sends a command to Merro wiping her simulation avatar and backup copy there — she does not intend to return.