I don’t know why this idea popped into my head.  Just one of those random ideas I get when I mentally challenge myself to “think of something”.
There were a few variations.  In one, Gypsy was there pointing out that Luna’s soup was spelling something again. In another, right after threatening to eat Luna’s soul, the letters rose up out of the bowl and spelled out, “Just kidding!  Grandpa here!  What’s up?”  But in each version there was too much info.  Too many ideas.  So I simplified it into what you see here.
Hope I chose wisely!
John Vogel white