Displacement of Mist

A willing creature of your choice that is within range vanishes in a ball of mist and appears in the Ethereal plane. When the spell ends the creature returns in an unoccupied space within 5 feet of you, replacing the ball of mist. While on the Ethereal Plane, the creature can see and hear the plane they originated from, which is cast in shades of gray, and they can't see anything more than 60 feet away. They can only affect and be affected by other creatures on the Ethereal Plane. Creatures that aren't there can't perceive them or interact with them, unless the creature has the ability to do so.