It is found in the Magic Tab, requires 4 Nightmare Fuel. Festive Lights can be used for infinite source of light, as they will still glow even when they reach 0%. The Skyworthy is the Hamlet DLCs equivalent of Shipwreckeds Seaworthy. If an Enlightened Crown Shard is placed in a mushroom light all perishable items in the light's inventory will not spoil. Light Bulbs that spoil inside a mushroom light will drop rot on the ground nearby. Please leave me a message if I can help with anything