After finally escaping from the wrath of Seek, you ride your minecart to wherever it takes you next. All of a sudden, a monster with a scar on its head and a giant mouth emerges before you, it's deep laugh shaking the very cavern. You force your minecart to turn to the track on the right, but the rail is broken. You fall from the minecart and look behind you, seeing the monster still there. Full of adrenaline, you rush forward, running through a gate that closes behind you. On the left, you notice a terminal with a red button and a screen showing 4 lettered anchors, possibly used to power the giant bridge up ahead. You press the button and the terminal displays a 3 digit code, the antenna at the top points to anchor A which is conveniently right behind you. After finishing with Anchor A, you go back and press the button again, displaying another code and pointing through a wall, presumably where Anchor B is. The doors next to the bridge open and you go through one of them, finding yourself in the massive tunnels of the Grumble's Nest.

(You are equipped with a bulk light, 10 glow sticks, a med kit, and a laser pointer. There are also lockers around the nest that contain more glow sticks, batteries, and bandaids, as well as some big enough to hide in.)