Lamplighter's Cache.

Treasure

Lamplighter's Cache

The cache is hidden behind a loose brick in the valve chamber. It belonged to generations of lamplighters who treated the cistern as a civic shrine.

• A polished brass key stamped with Greyford's bridge mark.
• A waterproof pouch of coins or level-appropriate currency.
• One useful light-themed consumable or magic item appropriate for your system.
• A folded maintenance diagram showing the lamp house, bridge channel, and lantern well as one connected machine.

If the PCs report honestly to Lord Greymark and restore the lantern, the city also grants free lodging, ferry passage, or a future civic favor.