Texas parents are frantically posting photos of their daughters and pleas for information as more than 20 campers from an all-girls summer camp remain missing after floods tore through the state’s south-central region. At least 13 people were dead Friday and dozens missing after months worth of heavy rain fell in a matter of hours on Texas Hill Country, the local sheriff said. The region is dotted with century-old summer camps that draw thousands of kids annually. Lt. Gov. Dan Patrick said about 23 girls attending Camp Mystic, a Christian camp along the Guadalupe River, were unaccounted for Friday afternoon. Search teams were working to conduct helicopter and boat rescues.