Avery's Storage Key is a miscellaneous Story Item in Act Three.
A small iron key.
Properties
Miscellaneous Items
Rarity: Story Item
Weight: 0.01 kg / 0.02 lb
Price: 1 gp 
UID
LOW_FireworksBasement_Chest_KeyUUID
83066fb5-89b0-4dc3-a12e-bf792dbf616a
Where to find
- On a shelf on the second floor of Felogyr's Fireworks shop in Lower City, on Clerk Tamara's counter
Usage
- Opens the Wooden Chest in the basement of Felogyr's Fireworks