What: A hidden underground marketplace run by the Zhentarim, beneath the ruins of Conyberry.

Entrance: Inside an old, cracked village well. A hidden mechanism turns part of the inner stonework to reveal a narrow spiral staircase. Sentries guard the approach.

Fighting Pits: Fighters compete for gold and reputation, and spectators bet on the bouts.

At our table: The party found the outpost under the well and fought in the pits (GM-reported, session gap 6/30-7/28). Table canon; not in the book.