In this level you’ll need a Regular Wizard, Key Character, Dark Wizard, Bag Character, Weasley, Strong Character, and Digging Character.
Levitate the glass from the left into one of the plates. Turn the one on the bottom and put the purple one on the wall, then turn this plate as well. Build and turn the final plate for a bottle to exit the area.
Walk down the path and use Wingardium Leviosa on the bush. Jump on the pad that is created after putting the pieces together to be levitated up. Use Wingardium Leviosa on the plant here to cause the vines to recede and allow you to pass through. Use Wingardium Leviosa on the bush a little bit forward and place the item in front of you. Destroy the plant to the left and use Crookshanks to dig up another piece, which should be placed in the same area as the first. The final piece is to the right and must be dug up; after placing it on the wall go up to the final section of this area. Shoot the blue plant down the path and create shears, then cut the flowers to move on.
Shoot the plants around the bike, then put them together and ride the bike. Ring the bell in the four colored areas to make the birds clear the path. Destroy the plant up ahead to find a sleeping Grawp, then go back for the bike and ring the bell near him. Ring the bell in each of the areas to clear the path and end the level.
Use a key character to unlock the vault in the first area for the Gryffindor Crest piece. Use a Dark Wizard on the clock, then shoot it for the Professor Umbridge character token.
In the first area of the Forbidden Forest, after you destroy the barricade, have Hermione use the pad on the ground. Ride the spider that she pulls out of her bag to get the Slytherin Crest piece. Use Reducto on the lock on the chest after building the purple flower to get the Hufflepuff Crest piece. Use the Weasley box near the end of the area to free the Student In Peril. Near the box there is a spot on the ground that must be watered using Aguamenti and then shot for the Emmaline Vance character token.
Destroy the plant underneath the bird on the branch to reveal a spot that needs watered. Use Aguamenti to grow some flowers, then shoot the purple flower for the Ravenclaw Crest piece. Pull the orange handle near Grawp to get the character token for Neville Longbottom.
All you have to do is follow the trail to Hagrid’s hut and ride the thestral to start the next level.