Faelan and Wren, two new apprentices in the Glass Blowers workshop, discover that the specialized amber gels meant to light the river path lanterns have turned cold and inert due to the ground resonance drain. They consult an old logbook left by Artisan Hemlock who references the Wax of the Deep Harvest as a historical counter-agent for light-retaining thermal failure. Despite Wren's initial skepticism, Faelan finds the dense, slightly warm wax bricks in an emergency cabinet. They painstakingly chip the cold contaminant from the lantern bases and melt in the Deep Harvest Wax, successfully stabilizing the light-retaining gel and restoring the amber glow to the glass. This success highlights the existence of another specialized, old-world stabilizing material, but they realize the supply of this critical wax is dangerously low. The episode ends with Wren realizing the immense scale of the remaining threat if this specialized material is needed everywhere.