Mary Pope Osborne

In this latest installment of the ever-popular series, Jack and Annie go to New Orleans on All Saint's Day in 1915 to find a young musician named Louis Armstrong. Music, mystery and ghosts combine for another riveting quest for the sibling adventurers.

Meet heroes (and heroines) in these well-told tales of fictitious and actual characters from American folklore. These tales are ideal for reading aloud, and are illustrated with strong-lined wood engravings.

Jack and Annie head to a Venice of long ago on a mission for Merlin to save the city from a devastating flood. History and time travel meld for an imaginative, informative jaunt.

Louisa May Alcott briefly worked as a nurse during the Civil War before becoming ill herself. In this fantasy, Jack and Annie travel back to the Civil War, meeting Clara Barton and help nurse the soldiers wounded in battle.

Travel back to the 19th century with Jack and Annie on another mission for Merlin — this one involving the South Pacific, sea travel with early scientists, and the search for a sea monster.

Time-traveling siblings, Jack and Annie, are celebrating their 20th anniversary in print. Join them on their first fantastic adventure to the time of dinosaurs. The occasion is celebrated with new illustrations, updated dino-info, and a letter from the author.

Travel with Annie and Jack to the city of Edo in 17th century Japan on a Merlin Mission to find one of the secrets of happiness. The siblings spend an exciting day with the wise and respected teacher, Basho, using their research skills for a fast-paced, informative, and fantastic adventure.

Annie and Jack find themselves in remote and frozen Antarctica in contemporary times on a mission to save a small orphan — and Merlin himself. Fact combines with fantasy though readers can learn more about the place and its inhabitants in a companion volume, Penguins and Antarctica: A Magic Tree House Research Guide.

Language and art combine to recreate long ago times of long ago heroes. Meet Fin M'Coul, Arthur, and others in these sophisticated tales. Ideal for reading aloud to mature readers.

Realistic watercolors present the summer celebration a boy shares with his family on the 4th of July. The day's activities range from a pet parade and games to a barbeque and concert. The patriotic performance concludes with fireworks, after which the family returns home, tired but happy. The story is inspired by an actual community gala.