Horses Mentioned by Name

Some horses are mentioned only in passing in various official merchandise. These horses are given no appearance or any defining information. Simply their names are known.

Horses Mentioned in Fiery Fiona
These horses in Fiery Fiona were all mentioned only by name.
 * Arca
 * Dax
 * Sparkle

Horses Mentioned in Dorothy's Horse
This horse in Dorothy's Horse is mentioned in detail, but no plot summary for this book exists.
 * Merlin