The inflatable playhouse had been staked to a front yard Monday in South Glens Falls, while the boys and a girl played inside.
Witnesses said a gust of wind upward of 25 mph, lifted the house approximately 50 feet -- more than two stories high -- and carried it over a stretch of woods before dropping it on a two-story schoolhouse.
"It was like a horror movie," resident Taylor Seymour told ABC News. "That poor, little kid came flying, just came flying out of nowhere."
