Meet Ella and Olivia. Big Sister. Little Sister. Best Friends. Join Ella and Olivia in four wild animal adventures! From pet puppies to wild kangaroos, these sisters just love animals! Adorable Animal Tales includes: Puppy Trouble Pony Problem Zoo Rescue A Wild Adventure Book features : Over 500,000 Ella and Olivia books sold! Four animal-themed stories in one volume. Popular Australian series that girls LOVE. Perfectly pitched to the 5+ reader with large font and plenty of sweet illustrations! Themes: sisters, animals, pets, nature, friendship, holidays.