Yeah, this is probably a really dumb one, Humor me, please.

"What's this? Hordryd's treasure chest has grown one space"

I'm guessing that this won't be impacting me...? (I warned you it was dumb... XD)

Your pets have treasure chests, and you can put items in there. They show up on the look-up :). This random event means they got one more spot in there to put items ^^.

Thanks for clarifying that for me! :)