original: She escapes with Alwa just before the police arrive to recapture her.
simplifications: She escapes with Alwa before the police come to get her. She escapes with Alwa before the police could capture her. She escapes with Alwa just before the police come to catch her again. She escapes with Alwa just before the police recapture her. She and Alwa get away right before the police arrive. Before police can recapture her, she escapes with Alwa. She escapes with Alwa before the police arrive. Just before the police arrive, she escaped with Alwa. The police arrived to recapture her but she had escaped with Alwa. She escaped with Alwa just before she was caught again by the police.