Neighbor Inherits Cabin From Old Lady, Then She Finds This Inside

Finding puzzle pieces

It was clear that Margret was some sort of archeologist before she retired and met Suzan. Was this her research cabin? Suzan looked around and found multiple excavation tools lying around, validating this theory. This also explained the animal parts in strong water a bit. But the puzzle was far from being complete because the biggest question remained: “Why did she leave me this place?”