A Spanish Fork girl has been released from the hospital, but her sister remains in serious condition following a July 27 accident that caused the pair to be dragged up and over the outside of a building.

Alyssa Garfield, 6, and Andrea Garfield, 10, were inside an inflated room where children jump on the air-cushion floor. The room was used to promote Skipper's Seafood 'n Chowder House in Provo. At 6 p.m., strong winds picked the room up and threw it over the roof of the restaurant, a Provo Police dispatcher said.Alyssa has improved from critical to serious but stable condition at Primary Children's Medical Center. She suffered serious head trauma, internal injuries, multiple fractures and damage to her legs. She is being kept in an induced coma to speed her recovery.

Andrea suffered abdominal injuries and fractured two vertebrae. She was released from Utah Valley Regional Medical Center earlier this week, a hospital spokesman said.

The girls' parents, Jon and Susan Garfield, have reportedly hired an attorney to prepare a lawsuit against Skipper's. The family apparently has no medical insurance and will need money to pay hospital bills.

The girls had been playing in the room while their parents finished a meal, according to a family source. The girls' brother, Jonathan, 8, decided to spend the evening with friends, or he might have been in the room too, the source added.