The Palomino Pony comes home by Olivia Tuffin

Nosy Crow, 2014. ISBN 9780857633033
(Age: 10+) Fourteen year-old Georgia is like many girls of her age - horse crazy. Her greatest joy is when she is caring for Wilson, the show pony belonging to 17 year-old Sophie who's quite willing to have the glory of the ribbons from riding well but would prefer not to get her hands dirty with the stable stuff. So Georgia willingly steps up spending all her time at the stables wishing she could have a horse of her own but knowing that since her father left, it is but a dream. Unfortunately caring for Wilson means Georgia neglects her studies and she finds herself having to attend summer school in Wales and not having Wilson to herself as she's been promised.
But on a geography activity she spots a palomino pony looking neglected and abandoned in a paddock next to a deserted house. And so begins her relationship with this beautiful creature which has run for its life from its cruel owner and which has spawned a new series including The Palomino Pony wins through, The Palomino Pony rides out, The Palomino Pony runs free (due April 2015) and The Palomino Pony on parade (due September 2015).
Even though she is 14, Georgia is a young 14 and while there is a hint of romance with Dan, a fellow schoolmate also at summer camp, this is a very suitable series for those upper primary girls who are always on the lookout for new books about horses. There's plenty of action and adventure and the characters are well-drawn. I know Miss 10 will be very keen to get her hands on this series.
Barbara Braxton