Wondrous item - Rare
This magic stone radiates a dim green/blue light, and has a slight vibration when you touch it. You can spend a 1 hour ritual to attune the stone to your current location.
At any time after this, using 300gp worth of diamonds as material components which the stone consumes, you can do a 1 minute ritual to transport yourself and 6 willing creatures within 30 feet of you back to the location the stone is attuned to. If the location is on a different plane, there is a 50% chance that the transportation misfires and transports you to a random location on said plane. This may also shatter the stone, in which it will be rendered inert.
Currently attuned to: The Nest