At Animal Ark, Mandy Hope helps her parents treat animals of all shapes and sizes. Even outside the clinic, Mandy can't resist helping any animal in need. When James leads Mandy to a badger nest he's been watching, they find that it has been deliberately destroyed. All that is left is an orphaned badger cub. Can they discover who did this cruel thing and will they be able to find a new home for the cub?

James is chosen to look after the school hamster during the summer, but someone vandalizes his garden and steals the poor little thing. Who's behind the theft? City kids visiting the town or someone closer to home?

It's Christmas at Animal Ark. Amber, the cat, has mysteriously vanished and Mandy and James hope to find and return Amber to its owner before Christmas.

Mandy and James discovered a stray cat and her kittens behind old Wilfred Bennett's house. The next time they visit, they find that the cat has moved her family into a trailer on cat-hater Sam Western's campsite.

"Mandy and James are helping prepare for the school play--but behind the scenes a family of squirrels is causing trouble..."

Mandy is haunted by dreams of a mysterious cat and wonders if it is because she is worried about Bathsheba, a tabby cat who has disappeared. Can this cat help Mandy solve the mystery of Bathsheba's disappearance?

Mandy's grandparents are watching a friend's hamster, but they don't know how to take care of the little animal. Mandy knows all about hamsters and so she agrees to stay with her grandparents to help out. But Mandy isn't sure what to do when the hamster disappears!

Mandy and James try to aid twin foals who are sick and, in addition, they must try to keep the foals' farm from financial ruin.

At Animal Ark, Mandy Hope helps her parents treat animals of all shapes and sizes. Even outside the clinic, Mandy can't resist helping any animal in need. Mandy and James are excited about their school trip to an old mine. While underground, Mandy begins to imagine how difficult life must have been for the ponies that used to work down there. Suddenly, she spots eyes gleaming in the darkness, watching her. But James can't see a thing! The very next...

In the series' fifth book, Jody and the crew arrive in the Caribbean and make a new dolphin friend, Frida. But other dolphins there have been captured and taken to live in dirty, unhealthy conditions--just to entertain tourists! Jody is outraged. Can she help win freedom for these dolphins?