Blue Prince is full of strange puzzles, eerie locations, and secrets that reward the curious. Among its more cryptic challenges is the mysterious blue flame puzzle, four ghostly flames that can appear on a pipe-ridden balcony just outside the Manor’s front door. They seem simple at first glance, but activating them all requires careful exploration, puzzle-solving, and a bit of persistence.

Where To Find the Blue Flame Switches

To activate each of the four blue flames, you’ll need to locate and flip four hidden gas switches. These switches are not inside the Manor itself, but you'll need to explore the surrounding areas to reach them. The switches can be found in:

• The Apple Orchard
• The Gemstone Cavern
• The Hovel
• The Schoolhouse

1. Apple Orchard

Your first stop is the Apple Orchard, just outside the Manor near your starting tent. To access it, you’ll need a combination code for the gate lock.

How to find the code:

• Head to the Dark Room in the Manor.
• Flip on the lights using the Utility Closet switch.
• Use the Magnifying Glass on the photo in the room.
• A date 11/28 will be visible on a tree in the image.

Enter 1128 on the gate lock to get in.

Once inside the orchard, look to the left side to find a gas pipe with a switch. Flip it to light the first blue flame.

2. Gemstone Cavern

This cavern is sealed behind a mechanical door outside the Manor. To access it:

• Visit the Utility Closet.
• Set the V.A.C. Indicator buttons to the following color sequence (left to right): Off, Blue, Green, White, Red, Purple.
• This will open a hidden wall revealing a large lever.
• Pull the lever to unlock the Gemstone Cavern entrance near the camp.

Inside the cavern, the second switch is immediately on your right as you enter.

3. Hovel

Now it gets trickier. Both the Hovel and Schoolhouse are Outer Rooms, which can only be accessed after unlocking the Outer Room slot.

How to reach the Outer Room:

1. Go to the Utility Closet and turn on the Garage breaker.
2. Head to the Garage and open the garage door.
3. Follow the path outside until you find the Outer Room door.

The Hovel is one of the rooms that can spawn here. If it doesn't show up immediately, keep trying on future drafts. Once you get it:

• Inside the Hovel, find the switch next to the stove and flip it for the third flame.

Tip: Unlock the west gate while you're outside. This shortcut stays open even after ending the day, making return trips faster.

4. Schoolhouse

The final switch is in the Schoolhouse, another Outer Room like the Hovel. If the Schoolhouse doesn’t appear, wait and try again on another draft.

• Inside the Schoolhouse, find the heater in the middle of the room.
• Flip the switch on it to activate the fourth and final flame.

What Happens After You Light All Four

With all four blue flames burning, something special is unlocked:An elevator will appear near the flame platform outside the Manor. This elevator doesn’t reset between days and leads to an entirely new area featuring the Chess Puzzle, one of Blue Prince’s more challenging secrets.

Final Tips

You don’t have to activate all the blue flames in a single day, once a flame is lit, it stays that way even after restarting. This gives you the freedom to take your time and explore without pressure. If you're struggling to find the Hovel or the Schoolhouse, remember that these Outer Rooms rotate, so check back on different days until they appear. And finally, keep your eyes open. Blue Prince loves to hide secrets in plain sight, and taking a few extra minutes to explore an area can often lead to hidden rewards.