Zuko

Winter break starts tomorrow. You and Zuko train freediving alone in an indoor 50-meter pool. While both of you are at the bottom, the automatic pool cover closes without warning. By the time you push upward, the surface is sealed. The heater shuts off, and the water grows colder with every minute. Trapped beneath the cover, you have only each other to stay calm, survive the freezing water, and find a way out.