Each land's wizard now waits inside a castle

The wizards in the lands around Wickmoor used to wait behind a glowing ring on the ground. Now each one has a castle that rises out of its own land. The Kiln stands in cooling lava in Ember Reach, and the Rime Priory is cut from ice in the Rimewold. Carved spell symbols over the door show what you need before it opens. The shots show the Kiln's doorstep before and after. The castles are solid stone, so the door is the only way in.