Unlocking the Mansion Safe in Loco Motive: A Guide

The last chapter of Loco Motive kicks off with an exciting twist: if you were wondering what had happened to Lady Unterwald at the start of the game, you can finally set those thoughts aside. It’s now time for our brave trio of unlikely heroes to step in and make things right.

As always, this journey will require thorough exploration and smart reasoning to tackle a series of intricate puzzles. You can expect to face odd item combinations, character switches, and intense standoffs. If you find yourself stuck, there’s a complete walkthrough available to guide you through it all.

Gathering Items

First things first, let’s ensure that everyone has the necessary items. For this, we’ll utilize the pneumatic tube system. To send an item, one character places it in the receptacle, while another requests it.

Here’s how to set up the rest of the chapter:

• Place Diana’s truth serum into the pneumatic tube system. Have Herman request it.
• Put Arthur’s wax seal in the pneumatic tube system, allowing Herman to request it.
• As Herman, grab a wire reel from the box near the basement entrance and send it through the tube for Arthur to retrieve.
• Meanwhile, have Arthur pick up the vinyl record from the shelves to the right.

Finally, as Diana, examine the portrait of Lady Unterwald followed by the safe inside, revealing a second safe. Now, let’s get to solving some puzzles!

How to Revive the Doctor

As Herman, check the doctor’s body to find a syringe. Inspecting it reveals it’s an antidote—use it on the doctor.

Doing so not only revives him but also eliminates the twins, enabling Herman to access the boiler—something you’ll need to do shortly. But first:

How to Open the Safe

With the twins out of the way, you can advance with the safe on the upper level. There are two locks: one needs Lady Unterwald’s voice, while the other requires her fingerprint.

Getting Lady Unterwald’s Voice

As Arthur, combine the wire reel he received from Herman with his recording device. Then, play the vinyl record on the record player located on the left side of the room.

Use the recorder on the spinning record to capture Lady Unterwald’s voice, and send it up to Diana through the pneumatic tube system.

Obtaining Lady Unterwald’s Fingerprint

Once the twins are eliminated, send Herman over to the boiler on the right side of the screen, and use the valve to open it. Apply the truth serum to the flames to intensify the heat.

Stand near the boiler for a few moments, and the heat will melt the wax seal in Herman’s inventory—this will be marked as melted wax. Quickly rush over and apply the melted wax to the statue to get Lady Unterwald’s fingerprint.

Important: Ensure you use the wax on the statue directly, not on the close-up you see after examining it.

When you’re ready, send the wax fingerprint impression up to Diana and use it along with the voice recording to unlock the safe.

Interrogating Arista

After opening the safe and giving the will to the executor, you’ll have a final dialogue with Arista. To achieve the best outcome, interrogate her using all three characters, switching between them to explore new dialogue options. This approach will irritate Arista, leading to some surprising revelations bolstered by the truth serum in the atmosphere.

Following some tense moments with Arista trying to escape, you find yourself on the stairs in the mansion’s entrance hall. To finish the game, use your letter opener on the rope tied to the chandelier as Herman.