Touchstones
A Touchstone is a large (2m tall) piece of crystal or rock that is "linked" to a similar artefact at a remote location.
When activated by a member of the Djinn, up to seven humanoids that are simultaneously touching the item are (almost) instantly transported to the other linked crystal or rock. Such travel is one-way and so these "touchstones" are often called either "dispatchers" or "receivers" based on their function.
The Touchstone network in the Empire is a relatively new innovation, established after the Magi of Gebbezra set up a mutal defence and trade treaty with the Empire in 1206IC. At present there is one "dispatcher" and one "receiver" touchstone at each of these locations:
Zakharr (Gebbezra) Specularum (Karameizante) Toratium (Thorast) Anstruth (Academia) Laiscol (Lichenburg)
All of these link to dispatcher/receiver touchstones in Cinnibar, the Imperial capitol in Dominus