Having used their magic tree house to travel to India, where they must get a gift to help free the dog Teddy from a spell, Jack and Annie have adventures involving a tiger and other endangered jungle animals.

For once, operations at the enormous zoo/theme park appear to be running smoothly (except for the occasional herring-related mishap in the penguin exhibit) and Teddy Fitzroy is finally able to give detective work a rest. But then a local lion is accused of killing a famous dog--and the dog's owner, an inflammatory radio host, goes on a crusade to have the cat declared a nuisance so it can be hunted. However, there's evidence that the lion might have...

Cursed by an old carnival game, sixth-grader Rex Dexter uses his new ability to communicate with dead animals to investigate the mysterious deaths of endangered zoo animals.

Bill the crocodile and his toothbrush, Pete the plover, set out to save Bill's cousin, who has been captured along with other endangered animals and taken from Egypt to Bad Guy's Big Bad Brother's Exotic Animal Farm near New Orleans, Louisiana.

Rachel and Kirsty must prevent Jack Frost from kidnapping baby animals for his icy zoo while they are at a Nature Reserve.

A single, healthy bald eagle egg is brought to the lower forty-eight states from Alaska in the 1950s. In this time only a little over four hundred bald eagle pairs were thought to be living in the United States--the US was in danger of letting its national bird go extinct. In spite of the odds against it, this egg hatched, the eaglet thrived, and today it is one of the reasons why bald eagles have made a come back.

Brenna, Maggie, and Zoe go to Florida to visit a manatee rescue center, where they learn about these endangered marine mammals.

To save their homes from being destroyed by developers, a fanciful group of endangered animals constructs a fearsome dinosaur.

"A trip to the zoo has Cinderella Smith and her friends excited to start their endangered species reports--until all of the books on Cinderella's chosen animal go missing from the school library, leaving the Group in Cahoots to solve the mystery"--

The charismatic Sir Lionel Frost considers himself to be the world's foremost investigator of myths and monsters. Mr. Link only wants to find the missing branch of his sasquatch family, the yeti of Tibet, and hires Sir Frost to help him search. Unfortunately, Adelina Fortnight -- a fierce woman who has crossed paths with Sir Frost before -- holds the only map, and they are pursued by a villain hired by the Adventuring Society who would like Mr. Link's...