Aerta stepped into the room and closed the door. 

"Rughoi may be hard to deal with, but he's still your son. You've told me that kobolds tend to be rather attached to their mothers, and that while he gave you a cold reception before, he still needs you more than he knows. So, we've been over this. I can teleport you into the city, and we can rendezvous with Kali. She will know exactly where Rughoi is. When we meet him, you should offer to treat that sprain he has. It's just one toe, but it must be truly aggravating him by now. All you have to do to alleviate the pain is to gently pull on it. As it is, I doubt he's touched it; too little pressure and it won't do anything, a bit too much and it only hurts. Got to release the pressure on the joint. He probably doesn't have the finesse to properly treat it, but you do." 

The draconess thought about it before replying. "It seems absurd to worry about so small a thing, I know, but even these little things can set him off, based on what you told me. More like the straw which broke the camel's back."