jaelis
Oh this is where the title goes?
As illusion an certainly stop you from seeing something, otherwise it wouldn't work at all. So if a medusa was holding still, an illusion of a towel over her head would block her gaze. But it would be harder if she were moving.
But compare to an illusion of a box over a lantern. You wouldn't be able to see the lantern, but would it still illuminate the room? I would say yes.
But compare to an illusion of a box over a lantern. You wouldn't be able to see the lantern, but would it still illuminate the room? I would say yes.