The Pump Room is a room in Blue Prince that can control the water flow around the Mt. Holly estate. By accessing the control panel and pumps inside the Pump Room, you can fill and drain water sources ...

In order to use the Secret Garden Key, you must find a locked door on the furthest east or furthest west side of the mansion. Make your way to either side of the house, and continue to draft rooms ...

There’s a bundle of dynamite located in the Trading Post — a room that’s only available through the West Gate on the Grounds of the house. Learn how to permanently unlock the West Gate here. Once the ...