The Grand Staircase is an internal location within Hogwarts School of Witchcraft and Wizardry that the player can visit in Harry Potter: Hogwarts Mystery.
Description[]
It is a massive stairway with multiple portraits on the walls, and is located on the Lower Floor - West. The Grand Staircase is an ever-changing way to move between floors in the castle. There's a secret passage in the paintings. There's also a teacup with legs on a desk.