...Continued from last chapter... the Muggleborns got more ideas. In that same seating, at least one Muggleborn in each house decided to connect their laptops to the televisions and opened up, you guessed it, the Slenderman game.
They taught the purebloods the basic controls and turned them loose.
Within an hour, all of the purebloods were petrified to the point of not being able to sleep, and the Muggleborns were cackling at them.