Questions re: the portals in the palace! The circles are presented as slightly different but reminiscent of portal-entrances. Do either of them contain white-marble and obsidian? Is the one in the ritual chamber more inclined to planal-related symbols than the one to the turtle's head?

Basically Sol has been researching Dreaming portals and I want to know if it's possible for him to tell where the circle in the ritual-chamber went, if anywhere.