Janni Lee Simner

American author of novels for children, teens and adults and also of several short stories. Most of these have a fantasy element, and they include a short ghost-themed pony series. Ms. Simner now lives in Arizona.

The author has a website, although unfortunately there is not a lot about her pony series on it.

Phantom Rider Series:

1) GHOST HORSE
(SCHOLASTIC PB 1996)
SUMMARY: Twelve-year-old Callie hates her new home in Arizona, until she glimpses a phantom horse outside her window and is drawn into its quest to be reunited with its ghostly owner.

2) THE HAUNTED TRAIL
(SCHOLASTIC PB 1996)
SUMMARY: Callie is sad that Star the ghost horse has left to be re-united with her ghost owner. However she cheers up when she sets off an a trail ride with her sister and a friend. But then the girls have an accident and are stranded in the middle of nowhere with a storm coming and a sinister stranger following them. Can Star return to the real world to help Callie?

3) GHOST VISION
(SCHOLASTIC PB 1996)
SUMMARY: Star has returned and Callie spends her nights taking secret midnight rides on the ghost horse. But then both she and Star start experiencing strange changes. As Star becomes more solid and real, Callie seems to be turning ghostly! What is happening?

Collector's Info:
Paperback originals. Easy to find in the USA, harder elsewhere. Although there are few copies to be seen in the UK, they are however usually low cost.