What do you after get the dream stone in house of Anubis song dreams?

In the game House of Anubis: Song Dreams, after you get the dream stone, you need to go to Anubis House Museum. There you will find a map that will lead you to the House of Anubis Dream Room. Once you are in the Dream Room, you will need to use the dream stone to open the door. Inside, you will find the Dream Staff.