Osborne, Mary Pope

"When Jack and Annie came back from their adventure in 'Magic Tree House #33: Narwhal on a Sunny Night,' they had lots of questions. What is a narwhal? Why is it nicknamed the unicorn of the sea? What other whales live in the arctic? How do they survive the cold? Find out the answers to these questions and more as Jack and Annie track the facts about narwhals and other whales"--Provided by publisher.

"An overview of llamas, chinchillas, and other Andean animals, as well as a general look at the region and its people"-- Provided by publisher.

"The magic tree house whisks Jack and Annie away to Greenland where they discover they've traveled back in time to meet Lief Erikson"--Provided by publisher.

"The magic tree house whisks Jack and Annie away to South America, where they must climb Machu Picchu to save a baby llama"--Provided by publisher.

"When Jack and Annie came back from their adventure in 'Magic Tree House #33: Narwhal on a Sunny Night,' they had lots of questions. What is a narwhal? Why is it nicknamed the unicorn of the sea? What other whales live in the arctic? How do they survive the cold? Find out the answers to these questions and more as Jack and Annie track the facts about narwhals and other whales"--Provided by publisher.

After her mother dies, eleven-year-old Adaline is sent to live in St. Louis while her father, the famous scout Kit Carson, explores the West. Because of her mixed heritage, Adaline is shunned by her relatives, but she suffers in silence while waiting for her father's return.

"When Jack and Annie came back from their adventure in 'Magic Tree House #33: Narwhal on a Sunny Night,' they had lots of questions. What is a narwhal? Why is it nicknamed the unicorn of the sea? What other whales live in the arctic? How do they survive the cold? Find out the answers to these questions and more as Jack and Annie track the facts about narwhals and other whales"--Provided by publisher.

The magic tree house whisks Jack and Annie to Washington D.C. in the 1860s where they meet Abraham Lincoln and collect a feather that will help break a magic spell.

Using their magic tree house, Jack and Annie travel back to the time of the American Revolution and help General George Washington during his famous crossing of the Delaware River.