Shadow Door

The caster creates the illusion of a door, which they will appear to pass through and close. In reality, the caster becomes invisible (as the spell) when the spell is cast. Any creatures opening the “door” will see an empty 10- foot square room, of similar style to the surrounding area. The caster remains invisible for the duration of the spell, unless, as with an invisibility spell, they attack any creature or cast a spell.