The outside area is not a "level" but the inside-the-tent area is, so make sure you clear the entire outer area before going into the tent. Raise the banners to get a Padma Patil character. Save the boy on the far left by making a trampoline for him for a Student In Peril. You get a Katie Bell character for raising the other set of banners.

Go to the right bench and hit it to go up onto the tent roof. Gather all the coins (including the blue ones in back) and then kick the ball into the spiral. Jump into the middle and get a gold brick. Now set the food stand on the right on fire to get a Ravenclaw Boy token.

When you're sure you have everything, go into the tent.

Now you're in an actual game level. There are 7 banners to raise. Shoot and move EVERYTHING. When you see a broom, get on it, it means there's a gap ahead.

In the next area, you have to build the maze first, and then send the rat through. Now you can construct the ramp to get up to the higher level. Smash things and build a bookcase.

It's a simon game - hit the buttons in the right order. Not too tricky! You get banner 7/7 here.

Send the rat under the stairs for a blue coin and a harry girl disguise.

Make the stairs and go up, then go up the ladder. There's another bookcase puzzle - now make a series of platforms up above your head.

There are boxes in the left corner with a purple coin - this should reach you to true wizard level.

Go into the curtained area to free Harry - he sees the snitch - and gets it!

got 1 house crest

true wizard

stud total - 367280

gold bricks:
22 level complete
23 wizard

Lego Harry Potter Walkthrough