Jo Packer’s Pepper trilogy are the only books by her I have been able to find. The covers of the first two, being by Peter Beigel are beautiful, but the contents of the only one I’ve read do not quite match up. Gymkhana Trek is an adventure-with-ponies. It’s a good comfort read, but it didn’t leave me longing to read the others in the series.
Finding the books
No Pony Like Pepper is quite extraordinarily expensive; Pepper Leads the String is very hard to find indeed. Gymkhana Trek is reasonably easy to find, and usually reasonably priced.
Links and sources
The British Library
Many thanks to Sarah Beasley and Susan Bourgeau for their help with the pictures.