7245ce09_4_Red_Bricks___Bone_Fish_Gamer__Brick
[Location] Library (Restricted Section) [How to get] In the corner, near the rune cabinet there are three books on the floor (1 x green, 1 x red, 1 x yellow). Place each one on the bookshelf next to another book of the same colour. [Cost] 250,000 [Brick] 
Red Brick Detector
Lego Harry Potter: Years 1-4 Red Bricks | Bone Fish Gamer
Brick