"Has someone ever told you that if you swallow fruit seeds, a tree will grow in your stomach? Has it ever happened to you? The Core Problem concerns a wealthy young man who picked and ate an apple from an enchanted orchard. His stomach is a wreck, and the only thing that can help him is a group of adventurers brave enough to enter his body and uproot his illness at the source. It's a good fit for 3-5 adventurers of level three. Content Warning: This adventure is about entering a person’s body, specifically their digestive tract. It may involve any and all of the bodily fluids associated with the digestive system. Visuals past the front cover are also meant to resemble the digestive system. This encounter was a part of the March 2020 episode of Design Dash: When the apple tree picks you." (Author Summary)