As Etherealness , with a much more limited duration.
You and up to 5 willing creatures that are touching each other step into the border regions of the Ethereal Plane, in the area where it overlaps with your current plane. While on the Border Ethereal, you may move in any direction, or choose to step into the Deep Ethereal. If you choose the Deep Ethereal, all creatures transported by the spell travel there with you. When the spell ends, all creatures immediately return to the plane you originated from in the spot they currently occupy in the Border Ethereal, or they remain in the Deep Ethereal indefinitely.
Traveling through the Deep Ethereal to journey from one plane to another is unlike physical travel. Distance is meaningless, so although travelers feel as if they can move by a simple act of will, it’s impossible to measure speed and hard to track the passage of time. A trip between planes through the Deep Ethereal normally takes 1d10 × 10 hours, regardless of the origin and destination. In combat, however, creatures are considered to move at their normal speeds.
At higher levels. When you cast this spell using a spell slot of 6th level or higher, the amount of time you can remain in the Border Ethereal increases by 1 minute per spell slot above 5th used.
* - (a quartz worth at least 50 gp, which the spell consumes)