The Council began as a compact among trades that had each failed Greyhook in a different way: harbor masters had overcharged during a shortage, storekeepers had hidden grain, and seawall wardens had delayed repairs while disputing responsibility. The compact made shared records and emergency stores central duties. Its reputation grew after it organized the repair of the north quay and kept food moving through two harsh winters. The defining watershed came during the Black Tide, a surge that struck while the harbor was crowded with vessels. Council leaders activated the concealed lower-gate flood mechanism to divert water from the port. The harbor survived; the lower ward took the surge. The Council called the loss an unforeseeable failure of old masonry and sealed the gate. In the years that followed, the Council expanded from a practical committee into Greyhook's civic government, collecting fees and rationing supplies in exchange for safety. A later inspection found mismatched gate marks and missing pages in the old flood register. Rather than reopen the question, the Council tightened control of keys, records, and public notices. Today its competence is real, its services matter, and its founding promise of shared accountability has become the very thing it fears.

The Council meets in the old fee office above the inner quay. Its lower rooms hold fee ledgers, ration tallies, and a locked cabinet of copied seawall plans. A narrow stair leads to the key chamber, where each upper seawall key hangs on its own iron peg. The chamber is kept dry with a constant brazier, but salt blooms through the mortar whenever the tide rises.