All my notes have it spelled that way. I don’t remember where the name originally came from but there used to be a theory that Kalak was not in fact a Champion. A bit of backstory can be found here:
It was trapped in the Grey, you can see what my plan was here, I haven’t completed the adventure yet, at this point it’s taking between 2 and 4 years earth years to 1 on Athas but we’re still early in the year: