It would appear that Aginor has walked away from his experimental lab, and a creature of twisted darkness has escaped into Randland. It looks so adorable and snuggly, but really... not so much. Oops.
Update on 3/27/16: Aginor's escaped creation is leaving treats in its path. Odd treats, but treats nonetheless. It also seems to like collecting shiny things. What a strange little ball of fur!