SOMETIMES, YOU REALLY HAVE TO WATCH WHAT YOU EAT....At Haunted Harriet"s restaurant you can have Boo Burgers, Franken-furters, and Monster-Mash Potatoes. But for Nancy, the real trouble is the creepy, crawly cake that goes ker-plooey!When a snooty birthday girl gets cake-slimed, Nancy may get the blame. But make no mistake, Nancy will find out who really put the glop in the cake -- no matter who"s cooking up trouble!