
After spending a solid hour dying on this section of Rhodes Hill, I finally pieced together a clean route to power the roof and escape. The catch here isn’t the puzzle itself — it’s doing it while the Girl is constantly hunting you in a tight, multi-level purification plant with almost no safe spots.
This guide walks you, step by step, through:
If you follow this order — control room first, sedimentation basin second, metal walkway third — you’ll cut a lot of backtracking and lower the number of times the Girl can corner you.
Once you leave the storage area, your objective updates to opening the roof. When you try the roof control, you learn the main battery isn’t strong enough. You have to route extra power from three separate systems buried in the purification plant.
From the roof control console:
The Girl begins patrolling this whole space once you drop down. There aren’t many bright, permanent safe zones like earlier in the chapter, so you have to rely on temporary lamps, a few Molotovs, and very careful use of Requiem bullets to buy time.
On my first attempt, I came in under-supplied and paid for it. Before you commit to the roof puzzle, make sure you have:
Don’t stress if your ammo is low overall. This section rewards smart use of the environment more than brute-force firepower.
The breakthrough for me was realizing you should handle the control room first, because that’s where your crank is and you’ll reuse it for multiple panels.
From the basin, hug the right side, staying low and listening for the Girl. Use crouch-walk to reduce your noise. You’re heading for the structures on the right: this is the control room section.

The crank is non-optional and easy to miss in the panic. Here’s where I find it every time:
Don’t make my early mistake of sprinting straight to panels without this item — you’ll just be forced to backtrack through the Girl’s patrol.
Now go into the control room itself. The first power panel is easy:
Once this system is online, pull the crank back out. A lot of players forget it here; you’ll need it again.
FinalBoss // Gear
Level up your setup
01Top-rated gaming headsetson Amazon→02High-refresh gaming monitorson Amazon→03Gaming chairson Amazon→04Discounted game keyson Kinguin→Affiliate links · As an Amazon Associate, FinalBoss earns from qualifying purchases.
The second power system is in the back left corner of the sedimentation basin. This is the first time the Girl seriously tries to body-block you while you’re stuck on the crank.
Leave the control room and move back out into the basin. Stick to the outer edge and stay crouched as much as possible; her footsteps and breathing will usually give you a second or two of warning.
You’re aiming for the furthest left-back platform if you’re looking across the basin from where you first dropped down. The panel is tucked there, near pipes and railings.

Before you start cranking, decide how you’ll delay her:
Lamps don’t stay lit forever, so only trigger them when she’s already in range — otherwise you burn your safety window for nothing.
When you start working this second panel, the Girl tends to close the gap fast. This is where I recommend using one of your precious 12.7×55 mm Requiem bullets:
Doing this not only makes the sequence much safer; it also unlocks a trophy tied to using a Requiem bullet during this high-pressure activation. You don’t need to spam bullets — just that one well-timed shot.
Again, take the crank back once the second system is active.
Get access to exclusive strategies, hidden tips, and pro-level insights that we don't share publicly.
Ultimate Guide Strategy Guide + Weekly Pro Tips
The final power system sits on a metal walkway close to the control room. This is where most of my deaths happened, because the Girl’s aggression spikes here and she’ll hunt you down whether she’s clearly seen you or not.
From the basin, head back toward the control room side, but instead of going inside, look for a raised metal catwalk that runs above part of the area.
There’s a narrow passage at the far end of the walkway that leads toward the final power panel.
In the corridor leading to the power system:
With lamp and ammo secured, move into the final power console room at the end of the passage.
The last activation plays out similarly to the second:
Once the gauge fills and the panel locks in place, all three power systems are online. This is the point where you’ll start hearing more ambient power noise in the area — a good sign you’re nearly done.

With all three power systems activated:
From here, you’ll move into a more traditional fight where your Molotovs and Requiem bullets become offensive tools instead of just emergency stuns. The hardest part — juggling the puzzle while being stalked in close quarters — is behind you.
What finally made this section consistent for me wasn’t better aim; it was changing how I moved and when I chose to fight.
On lower difficulties, you can lean on stealth more and sometimes never even use a Requiem round here. On higher ones, especially Démentiel, the Girl feels like she has a sixth sense — she’ll often path straight toward you even when you’ve been careful.
On Démentiel, don’t obsess over staying hidden; prioritize speed and decisive stuns. The longer you delay between panels, the more chances she has to corner you in bad angles or cramped walkways.
Once I stuck to this order and stopped wasting bullets, this section went from a brick wall to something I could clear in one or two attempts per run. If I can wrestle this puzzle into submission while being chased, you absolutely can too.