The Chamber of Secrets

Notable parts

• 3 moulds appear in no other set: Animal Body Part, Snake / Serpent Head, Basilisk with Dark Green, Dark Tan, and…; Animal Body Part, Snake / Serpent Neck S-Curve with Fixed Pin with Scales Print…; Creature, Phoenix (Fawkes).
• 3 parts come in a colour no other set has for that mould: Weapon Dagger / Knife (Glow In Dark Opaque) ×2; Hips and Sand Red Legs (Sand Red); Neckwear Cape, Standard [Traditional Starched Fabric] (Sand Red).
• 2 printed parts are only in this set: Brick 1 x 6 x 5 with Stone and Open Mouth Snake Print (Light Gray) ×4; Animal Body Part, Snake / Serpent Body, Basilisk with Scales Print (Sand Green) ×2.
• 17 parts appear in only a few other sets: Animal Body Part, Alligator / Crocodile / Dragon Upper Jaw / Dinosaur Tongue (Dark Gray) ×4 — also in 5988 The Temple of Anubis; Book 2 x 3 with Lock and Soiled Spots Print (Brown) — also in 4731 Dobby's Release (all Harry Potter); Brick 8 x 16 (Black) — also in 6969 Celestial Stinger / Space Swarm; Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube (Light Gray) — also in 3310 Press Box; Hair Center Parting (Earth Orange) — also in HPG03 Harry Potter Minifigure Collection Gallery 3 (all Harry Potter); Brick 12 x 24 (Black) ×2 — also in 10144 Sandcrawler, 8781 The Castle of Morcia; Hair Wavy (Tan) — also in 4733 The Dueling Club, HPG01 Harry Potter Minifigure Collection Gallery 1 (all Harry Potter); Hinge Brick 1 x 4 [Upper] (Dark Gray) ×4 — also in 3451 Sopwith Camel, 4729 Dumbledore's Office, 10027 Train Engine Shed; Animal / Creature Body Part, Tail / Neck, Base Section with Black Pin (Sand Green) — also in 6719 Brachiosaurus, 4501-2, 4501 Mos Eisley Cantina; Animal, Bird, Owl Large, Rounded Features (Light Gray) — also in 4723 Diagon Alley Shops, 5838 The Wicked Madam Frost, 5850 The Royal Crystal Palace; Hinge Brick 1 x 4 [Lower] (Dark Gray) ×4 — also in 3451 Sopwith Camel, 4729 Dumbledore's Office, 10027 Train Engine Shed, 1381 Vampire's Crypt; Panel 3 x 4 x 6 with Arched Window (Dark Gray) ×4 — also in 6091 King Leo's Castle, 6026 King Leo, 4817 Dungeon, 6098 King Leo's Castle; and 5 more.
• 1 part is otherwise only found in Harry Potter sets: Hair Short Bowl Cut (Earth Orange).
• 2 moulds first came out in 2002, including in this set: Animal Body Part, Snake / Serpent Body, Basilisk with Scales Print ×2; Hair Wavy.
• 4 existing moulds first came out in their colour in 2002, including in this set: Brick 1 x 1 x 5 with Blocked Open or Hollow Stud (Dark Gray) ×2; Brick 12 x 24 (Black) ×2; Bar 4L (Lightsaber Blade / Wand) (Dark Nougat); Hair Center Parting (Earth Orange).
• 2 minifigure parts with their print are only in this set: Shield Ovoid with Open Mouth Snake Print (Light Gray) ×2; Torso Jacket, Open over Tan Vest Print (Gilderoy Lockhart), Sand Red Arms… (Sand Red).

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.