Oil of Etherealness

The oil of etherealness appears metallic grey, cloudy, and viscous, and seems to evaporate at times even while it is within its container. It smells faintly metallic. Once Applied, it transports its user to the edge of the Ethereal Realm. This allows you to move unimpeded through objects and physical barriers and to observe anything you wish without being seen in return, unless the person or creature can see the Ethereal Realm.