Your Last Breath
This guide is copyright © 2005 by Garrett_729
Go through the hatch on the northern end of the room. You’re in a circle-shaped hallway patrolled by a Mechanist Archer Diver. No shadows. Dang it! Resort to Flash Bombs. Bomb her when she comes by, then BJ her. Even though it’s loud, it doesn’t attract nearby AI – trust me. Head through the door straight across from the one you came out of – Here, you’ll find another hatch door, and a ladder coming from a second and leading to a third. Descend the ladder. Flash Bomb/BJ the Mechanist Diver here. Explore the Basement, but like all basements, it contains cool junk, but nothing useful.
Chapel & Hera’s Quarters
Back in the room of many hatches, climb the ladder to the one on the top. Once upstairs, a nearby door is labeled ‘Chapel’. Skip the door and walk down the hallway to reach a door labeled ‘Priest’s Quarters’. Pick the door and enter. Nothing of use is in the bedroom. Open the next door to see Hera. Shut off the light and BJ her. You should attract another Mechanist. Lean forward and BJ her if she comes around. If she doesn’t, make enough racket until she does. When all is well read the journal. Turns out that Hera ordered Arbez to rig Serena’s helmet so it would flood. This explains her death. Hera also mentions conquering The Island of Iron. Looks like we’ll be seeing undead if we ever get to witness this! Pick the chest here to get a signet (800 total loot). Pick and leave via the only other door. The Chapel. Read the two Mechanist Tombs and then enter the door opposite the Altar. The three chests here contain 1 Spring Wiring, 1 Signal Bolt, and a spice bag (840 total loot). Return to the room with all the hatch doors.
Back in the room, go into the only non-hatch door. BJ the Mechanist Diver and read the scroll on the table. The Mechanists are planning to invade TIOI…but we already knew that. Go back through the hatch-door room to the hallway where you took out the Mechanist Archer. Turn right and move down the hall. Stop at the Mech Garage & Lab.
Mechanical Garage & Lab
Inside. The two lockers are worthless. The area next to the left lockers holds a Speed and Breath Potion, the right side holds Flares and A Readable. It explains how to destroy the base. Don’t get your hopes up, you can’t do it. Proceed down the corridor until you see a ladder leading up to a hatch door. Upstairs is Arbez. He always notices you, so Flash Bomb/BJ him. Up here, you see a dead servant on a desk near where Arbez was standing. On the desk is a scroll, a Cultivator, a Diamond Drill Bit and Gold Nugget (1190 total loot), and a Sunburst Device. The scroll tells you that Servants will lead the TIOI attack, and that their cells are currently full.
Air Processing & Servant’s Quarters
Return to the hallway. Enter the next door on your left (there’s one on the right that leads to the Control Center, don’t use it): Air Processing. Nothing in here, except a Mechanist Diver. Creep slowly behind him and BJ him. Back in the hall, take the next door (which is on your left). This is the Servant’s Quarters. Or more accurately, Servant’s Cells. Flash Bomb/BJ the Mechanist Diver Archer that comes through the door. Proceed on through Cell Blocks 1 & 2. (This room and the next room) In Cell Block 3 are 3 masks, 1 Crystal, and a scroll (1365 total loot). The scroll tells us that Lowell is ‘ridiculing’ Arbez for not thinking of the consequences of leaving Serena in the water (JAWS!).
Returning to the Surface
The next room contains a Health and Breath Potion. Open the hatch in here to get back outside. Swim back to the starting point. Still remember to beware of the patrolling MHAD! (Helmet Mechanist).
Congrats! You finished the mission!