Louise Edlen is 93 years young. Every school day, for the last five years, she's waited for the school bus that passes by her house. When it passes by, she waves with both hands to the children on the bus. The kids on the bus call her "Grandma in the window." But one day, Louise wasn't in the window. And the next day she wasn't there, or the day after that. The kids on the bus grew concerned. "It was kind of heartbreaking because she was always there," said 7th-grader Axtin Bandewerfhorst. Bus driver Carol Mitzelfeld decided to do some investigating and discovered Louise had a stroke and was in a rehabilitation center. Check out what the teens on the bus did for Louise.