The city’s water has turned faintly luminous—green as old copper—and people who drink it wake with rust-colored stains on their teeth and dreams of deep, humming pipes. The Waterwrights swear the mains are clean… but the Fountainworks beneath the streets have gone silent. No pressure. No flow. No one who went down to “reset the pumps” has come back. You’re hired to descend into the Fountainworks, restart the system, and recover whatever’s causing the contamination. The pay is excellent—because the Waterwrights are terrified.