It begins a bit like a *Scooby Doo *episode: archaeologists digging at a place called “Witch Hill” discover mysterious human remains in an ancient trash heap. Who was this person? How’d they get there? Astonishingly, it would take 40 years to find out, and the story is way more surprising — and groundbreaking — than anyone could’ve ever imagined. So, grab your Scooby Snacks and join Sidedoor as we journey to the Smithsonian Tropical Research Institute in Panama to see these unusual bones firsthand and meet the “meddling kids” trying to solve a mystery 700 years in the making.