Warehouse Inc.

There's a machine in The Incident at Galley House you'll spend an awful lot of time with, and it's a wonderfully tactile thing. It's part mixing desk, part paranormal enigma, part over-engineered Guess Who game, and full of clicky dials, chunky buttons, and a big old whooshy lever you're forever manipulating. And if your deductive instincts are good enough, it whirs into crackling life like a haunted slot machine, rigged to deliver strange psychic visions. Read more

If you want to ride the train along the rails in Big Walk, you'll need to complete one of the towers. We explain how the train works in our guide.