"Spells are usually more efficient in terms of cost to build their structure if they're circles. Actually marking out the circle is for convenience only, I can do it completely invisibly for magic I have more practice with. Let me know if or when you want to go home. If you can. Because if Kell annoys me enough that I finally snap and run off to the northern fringe or the stone teeth, er, the mountains in the west, you might not be able to find me."