There are 9 books in the jill series
Here is the list of them :
jills Gymkhana , a Stable for jill , Jill has two ponies ,Jill
has two ponies ,Jill enjoys her ponies , Jills Ridding club ,
Rosettes for jill , Jill and the perfect pony , pony jobs for jill
, jills pony trek .
thank you for looking