Here are the other series Christine Pullein-Thompson wrote:
Sophy
I Want That Pony!
The Best Pony For Me!
The Pony Test
The Pony Picnic
Horsehaven
Horsehaven
Havoc At Horsehaven
Horsehaven Lives On
Non-pony series
Giles
Giles and the Elephant
Giles and the Greyhound
Giles and the Canal
Eastmans
The Eastmans in Brittany
The Eastmans Move House
The Eastmans Find a Boy
Jessie
A Home for Jessie
Please Save Jessie
Come Home, Jessie
Ben
Stay at Home Ben
Careless Ben
Runaway Ben