In the basement, Alexander watched with great interest how Michelle summoned a pillar of void in the corner and started moving it slowly.
When the pillar was a few meters away from the wall, she began reshaping it into a wall that stretched from one side of the basement to the other but didn't touch the walls on the sides.
That made it so air could move from one side of the wall to the other by going through these gaps.
The wall of void she made was parallel with the wall with the entrance and the wall opposite it.
Michelle could already feel some wind pick up in the basement and go towards the void, but that wasn't enough. She needed more.
So she slowly, very slowly, started moving the wall from the wall at the end of the basement towards the wall with the entrance.