This shows how to get all the collectables on the game Lego Harry Potter Years 1-4. Free Play Mode In Lego Harry Potter Collection / Lego Harry Potter Years 1-4 The Shrieking Shack all collectables. How to find: True wizard (100% of studs required using red parcel multipliers) Gryffindor Crest / Red Crest Location Slytherin Crest / Green Crest Location Hufflepuff Crest / Yellow Crest Location Ravenclaw Crest / Blue Crest Location All Character Tokens Student in peril location