Abandoned Tunnels

The idea of treasure is too tempting to pass up. After all, you're already lost deep in the sewers. You're likely to die anyways, so you might as well make it exciting. You'd rather keep moving than starve to death.

You venture deeper into the sewer jungle. The further inwards you head, the more foreign and mutated the plants look. You reach another crossing. Three ways lie before you.

Before you can pick a direction, you hear a low rumbling roar vibrating the metal of the pipe. You feel it resonating through the sewers more than you hear the sound itself. Whatever created that sound must be massive. You've not encountered much wildlife out here, beyond the occasional too-large mutated fish. You've no idea what to expect.