Forbidden Corridor

2 moulds appear in no other set

• Animal Body Part, Dog Head (Fluffy)×3
• Creature Body Part, Dog Body, Three Heads (Fluffy)

1 part comes in a colour no other set has for that mould

• Animal / Creature Body Part, Dinosaur, Triceratops / Stegosaurus / Three-Headed…Black

1 printed part is only in this set

• Bar 4L (Lightsaber Blade / Wand) with Flute PrintDark Nougat

11 parts appear in only a few other sets

• Door Frame 1 x 8 x 6 with Moulded Stone Print and ClipsTanalso in 4753 Sirius Black's Escape (all Harry Potter)
• Insect Accessory, Spider WebLight Gray · ×2also in 4588 Off-Road Race Track, 4705 Snape's Class
• Brick Special 1 x 2 with PinGreenalso in 6713 Grip 'n' Go Challenge, 1195 Alien Encounter
• Neckwear Cape, Standard [Traditional Starched Fabric]Medium Bluish Violetalso in 4709 Hogwarts Castle, 4721 Hogwarts Classrooms (all Harry Potter)
• Stairs Spiral StepLight Gray · ×16also in 6740 Xtreme Tower, 4709 Hogwarts Castle, 4729 Dumbledore's Office
• Roof Piece 6 x 6 x 3 PeakedSand Greenalso in 4702 The Final Challenge, 4704 The Chamber of the Winged Keys, 4705 Snape's Class (all Harry Potter)
• Brick Special 1 x 1 with HandleGreen · ×2also in 4735 Slytherin, 4186872, 10015 Green Passenger Wagon, 3744 Locomotive Green Bricks
• Equipment KeyLight Gray · ×2also in 4709 Hogwarts Castle, 4712 Troll on the Loose, 4704 The Chamber of the Winged Keys, 4705 Snape's Class (all Harry Potter)
• Brick 1 x 16Dark Grayalso in 4729 Dumbledore's Office, 4990 Rock Raiders HQ, 1381 Vampire's Crypt, 6919 Planetary Prowler / Odonata
• Door 1 x 4 x 6 Round Top with Window and Keyhole, Non Reinforced EdgeBrownalso in 4707 Hagrid's Hut, 4712 Troll on the Loose, 4704 The Chamber of the Winged Keys, 4705 Snape's Class (all Harry Potter)
• Hair Mid-LengthBrownalso in 4723 Diagon Alley Shops, 4709 Hogwarts Castle, HPG04 Harry Potter Minifigure Collection Gallery 4, 4708 Hogwarts Express (all Harry Potter)

1 part is otherwise only found in Harry Potter sets

• Hair Short Bowl CutEarth Orange

9 moulds first came out in 2001, including in this set

• Stairs Spiral Step×16
• Equipment Key×2
• Support 1 x 1 x 5 1/3 Spiral Staircase Axle×2
• Door 1 x 4 x 6 Round Top with Window and Keyhole, Non Reinforced Edge
• Door Frame 1 x 8 x 6 with Moulded Stone Print and Clips
• and 4 more

10 existing moulds first came out in their colour in 2001, including in this set

• Plate 1 x 1Tan · ×4
• Brick Arch 1 x 8 x 2Tan · ×2
• Brick Special 1 x 1 with HandleGreen · ×2
• Insect Accessory, Spider WebLight Gray · ×2
• Plate 6 x 8Dark Gray · ×2
• and 5 more