During a violent thunderstorm, a young girl's impulsive search for her cat leads to a perilous situation. Dolly, the daughter of Black Beauty's owner, ventures out into the storm, and Black Beauty, after a frantic search, discovers her struggling in the river.

This story appears to be a heartwarming tale of animal loyalty and bravery, focusing on the bond between a horse and a young girl. The narrative centers on a dramatic rescue during a severe storm, highlighting the horse's protective instincts. The premise suggests a focus on suspense and the emotional connection between humans and animals. The resolution likely emphasizes themes of safety and the relief following a dangerous event.