Mary Pope Osborne

Presents a non-fiction companion to the book "Abe Lincoln At Last!," discussing what it was like to grow up in a log cabin and what Lincoln's family life was like, and describes how he became the sixteenth president of the United States.

Describes the people and animals of the Ice Age

Discusses dolphins and sharks, their oceanhabitats, and general information about oceans and oceanography. How fast can some dolphins swim? What is the biggest shark? Why do sharks attack? Find out the answers to these questions and more in this Magic Tree House Research Guide! Includes an illustrated gallery of dolphins and sharks, information on the ocean, dolphin communication, how sharks hunt for food, ocean exploration, and lots more!

A guide to Irish folklore discusses how the stories have been passed down, famous Irish folklorists and storytellers, and different kinds of fairies, and retells some stories

In their magic treehouse, Jack and Annie are again transported to King Arthur's realm, where invisible beings, giant ravens, and mistaken magic spells have a duke's castle in an uproar on Halloween night.

Jack and Annie must travel back in time to New Orleans in 1915 to help a teenaged Louis Armstrong fulfill his destiny and become the "King of Jazz."

As a thank-you from Merlin and Morgan, Jack and Annie are sent on what should be a vacation at a luxurious resort in Cozumel, Mexico, but is, by mistake, an adventure with ancient Mayans, instead.

Their magic tree house takes Annie and Jack to Pompeii just as Vesuvius is about to erupt, and they must find a Roman scroll before everything is covered with burning ash.

Jack and Annie travel back in time to Egypt and meet Florence Nightingale, who is on the trip that will influence her life and the decisions that will make her famous.

Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders.