"you're Spirit's daughter!" The roan mare asked, astonished.
Summer nodded her head, and looked at the human girl mischievously.
"My name is Sherbert. What's yours?" Asked the roan mare.
"Summer." Summer replied, simply.
Sherbert shook her mane, as Summer continued her mischievous gaze at the rider.
"Um…human. Would it be alright if you got on to my back please?" Summer asked.
"Excuse me?" The girl replied, "but, you're wild…"
"I don't care, just get one of those saddle things and ride me. Please!" Summer answered.
The girl did as she was told, and ran off to fetch some tack.
Sherbert looked on with curiosity as the human girl came hurrying back holding an english saddle and bridle.
Once Summer was tacked up, the girl hauled herself cautiously in to the saddle, and sat down lightly.
"Okay, what is this all about mustang?" She asked, her voice wavering slightly.
Summer grinned, showing off her four-year-old teeth.
"THIS!" She replied, and she sped around the track in a full gallop, the girl leaning forward over Summer's neck. 'This girl is a good rider!' Summer thought to herself as she approached the quarter mark, and pelted past it.
Sherbert watched in surprise as the horse and rider flew rapidly around the racetrack.
Now they were approaching the half mark.
"Halfway home!" Summer muttered to herself, giving an almight kick with her back hooves, and accelerating as they passed the half mark, and ran on.
Within forty seconds, they had already approached the final quarter, and the finish line loomed in front of them.
Summer bared her teeth at imaginary racers next to her, and eventually, she cleared the finish line.
The girl on her back slid down from the saddle and stared in to Summer's eyes.
"You were brilliant, mustang!" She squealed.
"Just call me Summer!" Summer answered, laying her head on the girl's shoulder.
"SUMMER!" A familiar voice shouted.
Summer turned her head toward the hill, and there stood her herd. Spirit had called to her.
It was a while before Spirit spoke.
"That was amazing Summer!" He cried.
Summer turned and galloped towards him, and they nuzzled each other's manes.
"You were absolutely brilliant!" Rain breathed, licking her daughter's ears.
Summer was enjoying the attenion so much, that she didn't see Lightning walking towards her. Summer suddenly felt guilty and shaky.
"Summer, I need to have a word!" He said. He then turned and walked away.
Summer had just experienced the most thrilling event of her life, and now, she felt cold and shaky…