The Great Unknown: Houdini's Castle: Collector's Edition Bonus Level

With our The Great Unknown: Houdini's Castle Walkthrough, finding your way through Houdini's sinister tests and traps will be a snap. This custom Houdini walkthrough comes complete with step-by-step instructions on what you need to do in order to beat this mysterious and challenging hidden object game. We've also included tons of screenshots, marked with key item locations, as well as solutions to all the puzzles and mini-games you'll encounter during gameplay.

General Information and Hints
Section One - To The Dungeon Door
Section Two - To Houdini's Room
Section Three - To Finale
Collector's Edition Bonus Level

Ask for help in the comments below!
  • Pick up Dart on the close night stand
  • Pick up Puzzle Part on the left dresser
  • Examine the Painting
  • Note you need a code for the lock
  • Examine the box on the bed
  • Note you need some more pieces
  • Examine the far night stand
  • Pick up the Puzzle Part and Faucet Handle
  • Note you need a brush and angel head
  • Examine the Dartboard; note you need darts

 

  • Enter the Bathroom
  • Pick up the 2 Puzzle Parts, Screwdriver, and Elevator Part
  • Examine the suitcase; need a key
  • Place the Faucet Handle; note the numbers on the Mirror

 

  • Return to the Bedroom
  • Examine the Safe
  • Enter the number (354179)
  • Pick up Key and Dart
  • Examine the Box
  • Place the Lock Parts on the box
  • The solution is the same as the slider puzzle near the Knight
  • Pick up the Box

 

  • Enter the Bathroom
  • Examine the Suitcase and use the Key
  • Pick up the Elevator Part and Dart

 

  • Return to the Bedroom
  • Use the 3 darts on the dartboard
  • Pick up the Door Handle
  • Use the Door Handle on the Door

 

  • Enter the Corridor
  • Pick up the Angel Head and Elevator Part
  • Examine the grill
  • Note you need something to pick up a part
  • Pick up the Brush
  • Note the Tear in the Sofa

 

  • Return to the Bedroom
  • Examine the Nightstand
  • Use the brush in glue
  • Place glue on the angel body
  • Use the Angel Head on Angel Body
  • Pick up the Angel
  • Return to the Bathroom
  • Place the Angel on the Wall
  • Pick up the Forceps

 

  • Return to the Corridor
  • Examine the grill
  • Use the Forceps and pick up the Elevator Part

 

  • Examine the panel near the Elevator
  • Use the Screwdriver
  • Place the Parts
  • Press the 4th, 8th, and 7th button

 

  • Enter the Hall
  • Place the Box on the Coffee Table
  • Examine the Juke Box
  • Need a Play Button
  • Examine the Wall Panel
  • Need  something to open it

 

  • Examine the Suitcase
  • Do the Hidden Object Scene
  • Receive Trowel

 

  • Exit to the Street
  • Examine the Fire Hydrant
  • Needs a Part
  • Examine the Car
  • Needs another Part
  • Examine the planter by the door
  • Use the Trowel
  • Pick up the Knife

 

 

  • Return to the Corridor
  • Use the Knife on the sofa
  • Pick up the Play Button

 

  • Return to the Hall
  • Examine the Juke Box
  • Place the Play Button
  • Repeat the pattern of lights 3 times
  • Pick up the Hydrant Part

 

  • Return to the Street
  • Place the Hydrant Part
  • Light up the lights in clockwise order by pressing the buttons at the top of the hydrant
  • Use this order: Left, Right, Right, Left, Left, Right
  • Pick up the Crowbar

 

  • Return to the Hall
  • Examine the Panel
  • Use the Crowbar
  • Pick up Key
  • Do the Hidden Object Scene
  • Receive the Engine Part

 

  • Return to the Street
  • Examine the Engine
  • Place the Part
  • Turn the tiles to complete the circuits
  • Use the Key on the door and you are on your way!

 

 

  • Examine the Turtle
  • Note you need 2 Eyes
  • Pick up the Door Lock Part
  • Use the Crowbar on the Dock
  • Pick up the Door Lock Part
  • Pick up the Door Lock Part in the boat
  • Examine the Door

 

  • Place the 3 Pieces
  • Find the Differences between the sides

 

 

  • Enter the Hallway
  • Pick up the Lock Part
  • Examine the Door
  • You need a triangular piece

 

 

  • Head left to the Observatory
  • Examine the Cannon
  • Pick up a Lock Part
  • Note you need something to clean the screw
  • Examine the Chest
  • Note this is where the lock parts will go
  • Pick up the Diamond Piece for Door Lock

 

  • Do the Hidden Object Scene on the bookshelf
  • Receive the Spring

 

  • Return to the Hall and examine the door
  • Place the Diamond
  • Turn the rings to make RW

 

  • Enter the door
  • Pick up the Wrench on the Table
  • Examine the Project
  • It is missing a lamp
  • Pick up the Key
  • Use the Crowbar on the cabinet
  • Pick up the Puzzle Part
  • Use the Spring on the hand
  • Pick up the Brush

 

  • Return to the Observatory
  • Examine the cannon
  • Use the Brush on the Screw and then the Wrench
  • Examine the Chest
  • Place the Lock Parts
  • Arrange the tiles
  • Use the Key
  • Pick up the Green Eye

 

  • Do the Hidden Object Scene
  • Receive a Green Eye

 

  • Return to the outside
  • Examine the turtle
  • Place the Green Eyes
  • Pick up the Light Bulb

 

  • Return to the Studio
  • Examine the Projector
  • Place the Light Bulb
  • Turn the Knob 4 times and flip the right switch once
  • Pick up the Box of Souls

 

  • Return to the Observatory
  • Place the Box of Souls to the right of the mirror
  • Click on the Cannon
  • Arrange the lens in columns to end the game
  • Use this order, Pink, Green, Red, Yellow, Blue

General Information and Hints
Section One - To The Dungeon Door
Section Two - To Houdini's Room
Section Three - To Finale
Collector's Edition Bonus Level

Ask for help in the comments below!