Moving Pony is the nineteenth book in the Pony Pals series by Jeanne Betancourt, first published in the USA in February 1999 (and published in Australia in 1998). It stars Lulu. It is followed by Stolen Ponies.
Lulu feels sorry for Sandy Nation. It's hard moving to a new place and leaving your friends behind. But why does Sandy suddenly change her mind about going on a trail ride with the Pony Pals?
When Sandy disappears the Pony Pals must decide what to do. But will they be able to find her? Will they be able to help?
(to be added)