Aerdrie's realm, a floating palace called the Aerie, shifts across the border between Arborea and Ysgard; sometimes it is found in Arvandor and sometimes in Alfheim.
Although a human deity, Phyton currently dwells with the Seldarine in Arvandor, though he also has a realm in Ysgard.
The two tree-gods engage in slow, seemingly endless conversations when the Seelie Court comes to Arvandor or Rillifane visits the Court (where he is always welcome).