APC-Files™ - True Crime & Dark History on Instagram: "The morning of October 17, 1978, began like any other for Maplewood Elementary. Twenty-one children boarded Bus #7 for a field trip to the local nature center, their laughter echoing off the vinyl seats as they clutched lunchboxes packed with peanut butter sandwiches and thermoses of still-warm soup. By noon, the bus had vanished without a trace. Three days later, it was discovered in an abandoned quarry, its engine idling softly, its doors w