CLARKS GROVE, Minn. — A St Paul camper was burned severely when she accidentally knocked over a kerosene lantern at the Harmony Park  campground. First-responders from Albert Lea carried Isabelle Kielas-Jensen, 23, to a field that  was converted quickly to a landing pad as  a medical helicopter hovered. She was flown 100 miles north to the Regions Hospital burn center in St. Paul. A neighboring camper said Kielas-Jensen’s torso was blackened and she was in too much pain even to tell first-responders her name. The accident was about 11:30 p.m., Saturday. The campground, the 40-acre Harmony Park, was full of campers for Labor Day concert series and events.