Mary Patchett has been writing about Australia for both adults (The Last Warrior, p. 443 of this year) and youngsters and this is a continuation of the stories as told by ten year old Mary of The Golden Wolf, Ajax Golden Dog, etc. Sometimes she seems lots older-- as old as the author-- ""What a wonderful world it was then, with my loved ones around me and my friend Tom across the fire."" Her loved ones are her animals-- she has a horse and a cockatoo and a ""kangroo"" and three dogs, Algy, Ajax and Ben, who go off with her now with Tom, an old teamster. They have lots of small experiences; stay with a nice family; pick up a dingo and a carpetsnake; outfight (chiefly through Ajax) three men who steal a horse; and solve the mystery of the haunted mountain and its ghost whom she finds alive, an addled old man.... The earlier books should determine whether or not this has any affinity with the interest of children here.