The final chapter ofLoco Motivebegins with quite the thrilling revelation: if you had any doubts about what happened to Lady Unterwald at the beginning of the game, it’s safe to say you can put them away now. For now, it’s up to our intrepid trio of unlikely heroes to save the day.

As ever, this will involve careful exploration and logical deductions to solve a bunch of complex puzzles thrust in front of you, likely involving some odd item combinations, character switching, and thrilling confrontations. If you’re struggling with any of the above, we have a full walkthrough for you right here.

Herman by the pneumatic tube system in Loco Motive.

Gathering Items

The first thing we’re going to do is ensure everyone has the items they need. To do this, we’ll need to use the pneumatic tube system. To use the pneumatic tube system, you simply need to place an item inside the receptacle with one character, and then request that item with another character.

Take the following actions to set up the rest of this chapter:

Reviving the doctor in Loco Motive.

Finally, as Diana,examine the portrait of Lady Unterwaldand then examine the safe inside to reveal a second safe. Now let’s solve some puzzles.

How To Revive The Doctor

As Herman, search thedoctor’s bodyto find a syringe. Examining it will reveal that it’s an antidote -use this on the doctor.

Not only will this revive the doctor, but it will get rid of the twins, giving Herman access to the boiler - you’ll need to use this soon. But first:

Diana and the safe in Loco Motive.

How To Open The Safe

With the twins gone, we can make progress with the safe on the top level. There are two locks: one requiring Lady Unterwald’svoice, and one requiring herfingerprint.

How To Get Lady Unterwald’s Voice

As Arthur,combine the wire reelthat Herman sent himwith his recording device. Then,use thevinyl recordfrom the shelves on therecord playeron the left side of the room.

Use therecorderon the record player as it’s playing to capture Lady Unterwald’s voice, and thensend it up to Dianausing the pneumatic tube system.

Refilling the voice recorder in Loco Motive.

How To Get Lady Unterwald’s Fingerprint

Once the twins are gone, you cansend Herman over to the boileron the right side of the screen anduse the valveto open it up. Use thetruth serumon the exposed flames - this will make them far hotter.

After a few seconds of standing near the boiler, the heat will melt the wax seal in his inventory - it’ll be labelled ‘melted wax’ when you examine it.

Herman near the boiler in Loco Motive.

Rush over to the left and quicklyuse the melted wax on the statueto get Lady Unterwalfd’s fingerprint.

You must use the wax on the statue,not on the closeupyou get from examining the statue.

Confronting Arista in Loco Motive.

Send the wax fingerprint impression up to Dianawhen you’re ready, and use it and the voice recording to open the safe.

Interrogating Arista

After opening the safe and delivering the will to the executor, you’ll be placed in afinal dialogue with Arista. The key to ‘winning’ here is to interrogate Arista with all three characters, switching between them to choose newdialogue options. This will anger Arista, leading to some startling declarations thanks to some truth serum in the air.

After the scenes with Arista trying to escape, you’ll be atop the stairs in the entrance hall of the mansion. To end the game, as Herman,use your letter opener on the rope connected to the chandelier.