Mega Gem Adventure

I want to get the Incredibly Dense Meat Gem But that adventure is nearly impossible

Have you done all the other stuff first? Did you put all the items on the altar in the Palindome and get beaten by Dr. Awkward? Did you cook the wet stunt nut stew for Mr. Alarm? It's kinda weird for that adventure to be hard to find, because it's usually the first one I see once I've cooked the stew.