The Mystery of Why This Dangerous Sand Dune Swallowed a Boy; When a boy suddenly disappeared into a sand dune, a scientist embarked on a quest to find out where he went

Erin Argyilan was wrapping up a scientific study of wind speeds on Mount Baldy last year when she saw a circle of beachgoers on their knees halfway up the hulking sand dune. They appeared to be digging frantically. It had been a gorgeous afternoon: sunny, mid-70s. All day, a breeze had rolled off Lake Michigan and up the dune’s rumpled face...