Mushers headed north on the Yukon River on Saturday, with the front of the pack on their way to Kaltag, where they turn west and head toward the coast of Alaska. Bethel's Pete Kaiser had advanced his team to the front, and we hear more about how he's managed that from earlier planning, as well as about sled modifications and repairs happening on the trail. Also, Alaska Public Media's Zachariah Hughes somehow works in an interview about Harry Potter books on tape with Martin Apayauq Reitan and Meredith Mapes.