Nelly's monster sitting adventures are always full of surprises. She certainly can't believe it when she sits a monster who wants to do absolutely nothing! Or when she has to rescue the smallest monster she's encountered yet - but nothing can prepare her for spending Christmas Day with the Dendrilegs!

The polarbores like to do absolutely nothing, so Nelly is in for a dull night. But when she invites Asti round to liven things up, she wishes her evening was a little less eventful...