Yesterday's choice, Elyne Mitchell's Silver Brumby's Daughter, is appropriately snowy for a European audience in the middle of winter, but not quite so good for an Australian one, for whom it's now summer. So, here's Anne Farrell's The Gift-Wrapped Pony - a pony present, not exactly for Christmas, but it's sort of within the theme.
The Guara books, of which The Gift-Wrapped Pony is the first, is the story of the Mitchell family. Mr Mitchell has had enough of his children's pony, Aurum, who is a dedicated escapologist, and the family dedicate themselves to saving her.
You can read more about Anne Farrell here.
Read more about the pony book in Heroines on Horseback, my survey of the world of the pony book from the 1930s onwards, though alas the Australian content is restricted to Elyne Mitchell, and there's not much on her. You can buy a signed copy from me (I'll post them worldwide). The book's also available from the usual sources, or your local bookshop.