Skip to content

LEGO Batman Legacy: Riddler Puzzles in Cauldron North

Find all 7 Riddler Puzzle solutions in Cauldron North in LEGO Batman: Legacy of the Dark Knight. This district covers the industrial waterfront area of Gotham, including ACE Chemical’s rooftops and the northern docks. Each puzzle entry below includes the exact coordinates, an overview map, and clear step-by-step instructions. The 7 puzzles are: Mirror Mirth, Short Time Circuit, Need a Breakthrough, The Key-side Conundrum, Pipe Down, Tight Corner, and Birdarandom.

Related Guides:
All 23 Red Brick Locations & Looks
All 9 Riddler Puzzles – Old Gotham South
All 9 Subwayne Locations and Solutions
LEGO Batman: Legacy of the Dark Knight Hub


Coordinates: 138, 512

After completing all Riddler Puzzles in Tricorner and in Old Gotham South, the Mirror Mirth Puzzle Room was unlocked. It’s the third one to unlock for me after the Introduction Mirror Puzzle in Mission 4: Carmine Falcone and the Cluemaster Puzzle Room in Mission 11: Kiteman. This Puzzle Room is 1 of 7 Riddler Puzzles in The Cauldron North.

The Mirror Mirth Puzzle Room is west of the Subwayne. An indoor location marked with green arrows and pink lights.

start-location-on-the-map-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com

In the first room, a lamp, a candlestick, and a radio have to be placed on the yellow bricks at the table, and a teddy needs to sit on the piano. First, move the lamp to its correct position on the left.

room-1-lamp-start-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com
room-1-lamp-solution-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com

The teddy is on the bookshelf, place it at the piano.

room-1-teddy-start-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com
room-1-teddy-solution-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com

For the candlestick, press the red button in this room. This will open the shutter to the storage area. The candlestick is on the floor. Put it in the table slot.

room-1-candlestick-button-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com
room-1-candlestick-in-storage-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com

The last item is the radio. Pick up the handle next to the table in the puzzle room and use it on the elevator mechanism in the warehouse.

room-1-radio-handle-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com
room-1-radio-elevator-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Move the box down and destroy the padlock. Inside is the radio. Place it in the last slot by the table. This will open the mirror door with the puzzle box behind it.

room-1-radio-padlock-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com
room-1-radio-solution-mirror-mirth-puzzle-room-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Short Time Circuit is north of the Cauldron North Subwayne. The puzzle box sits on an electrified platform that can only be reached by cutting the power briefly.

Coordinates: 153, 522

Short Time Circuit is north of the Subwayne. The Puzzle box is on top of an electrified platform.

start-on-the-map-short-time-circuit-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-short-time-circuit-lego-batman-legacy-of-the-dark-knight camzillasmom.com

There is a lever on the other side. If you use it, the power will shut down for a short while. Get one character ready, while the other one uses the lever. Be quick and get the puzzle box before the power comes back on.

lever-short-time-circuit-lego-batman-legacy-of-the-dark-knight camzillasmom.com
character-ready-short-time-circuit-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Need a Breakthrough is northwest of Short Time Circuit. The puzzle box is sealed behind a wall that requires a crane and two different character abilities to break through.

Coordinates: 146, 538

The Need a Breakthrough Riddler Puzzle is northwest of the previous one. The puzzle box is behind a wall with a crane next to it.

map-location-need-a-breakthrough-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-need-a-breakthrough-lego-batman-legacy-of-the-dark-knight camzillasmom.com

There is a cart nearby that you can move to the front. Then switch to Robin or Nightwing to connect the cart with the crane by using the Cable Launcher.

cart-need-a-breakthrough-lego-batman-legacy-of-the-dark-knight camzillasmom.com
cable-launcher-need-a-breakthrough-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Move up to the generator to charge it with Nightwing’s staff. This will break through the initial wall, revealing a wall that Batman can destroy with the Explosive Spray. Do so to find the puzzle box.

charge-crane-need-a-breakthrough-lego-batman-legacy-of-the-dark-knight camzillasmom.com
eplosives-on-wall-need-a-breakthrough-lego-batman-legacy-of-the-dark-knight camzillasmom.com

The Key-side Conundrum is in the west of the district, near the docks. Three keys must be collected and used on three locks to access the puzzle box behind the gate.

Coordinates: 108, 543

The Key-side Conundrum is in the west of the previous puzzle. The puzzle box is locked away behind a gate.

location-on-the-map-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com

On the other side of the gate in the screenshot are three locks that require a key each. The first one is locked inside a puzzle box connected to three red buttons. One on the floor in front of the box, the other one on top of the nearby shipping container, and the third at the very top of the shipping container stack. Use Batman and Catwoman. When Summon a Kitty to stand on the third button. Pick up the key and use it on one of the locks.

button-puzzle-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com
button-puzzle-solved-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Staying with Catwoman, there is a box hanging on a hook nearby. Use Catwoman’s Whip on the screw. The box will fall down, leaving the key behind. Use it on one of the three locks.

unscrew-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com
key-2-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com

For the third key, head down to the dock. Use the lever, then the Whip on the crane that moved back. It will extinguish the nearby fire.

lever-at-docks-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com
extinguish-fire-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Where the fire was is a Kitty vent. Summon one to go through and fetch the last key. Use it on the last lock to get the puzzle box.

kitty-vent-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com
kitty-vent-key-the-key-side-conundrum-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Pipe Down sits on top of one of ACE Chemical’s rooftop buildings, northeast of The Key-side Conundrum. The puzzle involves fixing broken pipes throughout the building to build up enough pressure to release the box.

Coordinates: 148, 570

Pipe Down is northeast of the previous puzzle, on top of one of ACE Chemical’s buildings.

start-on-the-map-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com

This puzzle works with pressure and broken pipes. Follow the pipe to the top level. Here, you can use Batman’s Bat Claw to pull a piece of pipe to repair a spillage. Switch to Jim Gordon and stop the next pipe piece when it’s at the bottom using the Foam Sprayer.

bat-claw-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com
foam-sprayer-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com

The third pipe piece is on a cart and must be pushed into place. The last pipe is on the other side. The pieces are inside a box hanging above the broken pipe and its lever. Throw a batarang at the box, then repair the pipe with the pieces before pulling the lever.

move-pipe-piece-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com
build-pipe-piece-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com

All you need to do now is destroy the broken valve near the puzzle box and plug the hole with Jim Gordon’s Foam Sprayer. This will blow out the Puzzle Box, and you can pick it up.

broken-valve-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com
broken-valve-fixed-pipe-down-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Tight Corner is near the northern waterfront, northeast of Pipe Down. Three hidden targets must be uncovered and shot to open the puzzle box.

Coordinates: 188, 586

The Tight Corner puzzle is in the northeast of the previous puzzle, near the northern waterfront.

start-on-the-map-tight-corner-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-tight-corner-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Follow the vent to a cover that you can pull off with Batman’s Bat Claw to reveal a target for the Batarang. Follow the second cable up to the roof. There is a box that Robin or Nightwing can pry open to reveal another target.

bat-claw-vent-tight-corner-lego-batman-legacy-of-the-dark-knight camzillasmom.com
pry-open-box-tight-corner-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Follow the third cable to the end of the dock, where Robin or Nightwing can use the Cable Launcher to discover the target on a buoy. Shoot all three targets to open the puzzle box.

cable-launcher-tight-corner-lego-batman-legacy-of-the-dark-knight camzillasmom.com
buoy-tight-corner-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Birdarandom is the easternmost Riddler Puzzle in Cauldron North, also along the northern waterfront. A generator with blocked flaps and a shooting sequence are the two steps needed to claim the puzzle box.

Coordinates: 216, 567

Birdarandom is the last Riddler Puzzle in the Cauldron North, it’s east of the previous puzzle, also near the northern waterfront.

location-on-the-map-birdarandom-lego-batman-legacy-of-the-dark-knight camzillasmom.com
start-location-birdarandom-lego-batman-legacy-of-the-dark-knight camzillasmom.com

There is a generator with two flaps in front of the battery slot, preventing the battery from being inserted. Go to the back and push it forward. This will open the flaps.

generator-birdarandom-lego-batman-legacy-of-the-dark-knight camzillasmom.com
generator-back-birdarandom-lego-batman-legacy-of-the-dark-knight camzillasmom.com

Now you can pick up the battery and put it in the slot. Now switch to Batman and make him stand on the red button. With Robin or Nightwing, mark all three targets from right to left and shoot them to get the puzzle box.

insert-battery-birdarandom-lego-batman-legacy-of-the-dark-knight camzillasmom.com
shoot-targets-birdarandom-lego-batman-legacy-of-the-dark-knight camzillasmom.com
Wanted Poster pinboard location - Newtown - LEGO Batman Legacy of the Dark Knight camzillasmom.com

LEGO Batman Legacy: All 7 Wanted Poster Locations and Solutions

Complete guide to all 7 Wanted Poster locations in LEGO Batman: Legacy of the Dark Knight. Pinboard …

All Riddler Puzzles in Old Gotham South - Overview Map - LEGO Batman Legacy of the Dark Knight camzillasmom.com

LEGO Batman Legacy: All 9 Riddler Puzzle Solutions in Old Gotham South

Find all 9 Riddler Puzzle solutions in Old Gotham South in LEGO Batman: Legacy of the Dark Knight, w…

All Subwaynes Thumb - LEGO Batman Legacy of the Dark Knight camzillasmom.com

LEGO Batman Legacy: All 9 Subwayne Locations Guide

Complete guide to all 9 Subwayne fast travel points in LEGO Batman: Legacy of the Dark Knight – ever…

Towers Thumb - LEGO Batman Legacy of the Dark Knight camzillasmom.com

LEGO Batman Legacy: All 9 Tower Locations

All 9 tower locations in LEGO Batman: Legacy of the Dark Knight – map coordinates and screenshots fo…

Gotham Zoo Thumb - LEGO Batman Legacy of the Dark Knight camzillasmom.com

LEGO Batman Legacy: All Escaped Zoo Animal Locations

Complete guide to all 21 Escaped Zoo Animal locations in LEGO Batman: Legacy of the Dark Knight – di…

thumb-plant-life-lego-batman-legacy-of-the-dark-knight camzillasmom.com

LEGO Batman Legacy: All Plant Life Locations and Solutions

Find all 10 Plant Life locations and solutions across 7 districts in LEGO Batman: Legacy of the Dark…

1 2 3 4 6
author avatar
Camzillasmom Collectibles Hunter
It all began in the ’80s when I was just 7 years old. Starting with basic arcade games, I soon delved into titles like Loom and Monkey Island by Lucasarts. Throughout the years, as I indulged in more and more games, I consistently sought clear guides to swiftly navigate my gameplay. Now, it’s my turn to contribute back to the community.

About LEGO Batman: Legacy of the Dark Knight

Release: May 22nd, 2026
Developer: TT Games
Publisher: Warner Bros. Games
Official Website: https://legobatmangame.com/