Basalt Monolith

A simple cylinder, about 6 inches in length, usually carved from solid rock, or occasionally crafted from polished metal. Once per long rest, when a command word is spoken, this rod transports the wielder and up to 6 willing creatures of their choice within 30 feet to a small demiplane centered around a 120 foot tall stone tower. The edges of this demiplane are located 1 mile from the edges of the tower, and drop off into nothingness; anyone who falls off of these edges is transported to a random location on the Astral Plane.   All creatures which enter this demiplane are able to stay here for up to 8 hours, or until the wielder of the rod speaks another command word to return themselves and all creatures which accompanied them back to their original location. Once the item is used, all creatures must remain on the demiplane for 1 hour. The tower has several bedrooms complete with furnishings, as well as a number of empty rooms, though it has no supplies and no sources of food or water. Any material items brought here which are not carried back by the occupants remain safe here, and are available to use during any further visits. Time passes within this demiplane at the same rate as the Material Realm, and perishable items left in the demiplane will spoil over time, as normal.   Any creature which takes a short rest here may choose to remove one level of exhaustion or recover one spell slot of up to 3rd level. This ability only functions for each creature once per visit.