Next came a cup of white vinegar. She poured it slowly, and the reaction began immediately—a joyful, violent fizzing that sounded like a thousand tiny volcanoes. This wasn’t magic; it was chemistry. The alkaline baking soda met the acidic vinegar, creating carbon dioxide bubbles that scrubbed the pipe walls without eating through the metal.

Elara removed the standing water with a small cup—not all of it, just enough to see the drain’s dark mouth.

“Baking soda and vinegar,” she whispered, pulling the orange box from the pantry.

When she returned, she boiled a kettle of water. Not just hot—boiling. She pulled the rag and poured the water down the drain in a steady, careful stream.