Sal Murdocca

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.

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.

Annie and Jack go back in time to Camelot to a haunted castle to find the Stone of Destiny. Their quest involves lots of spooky things as well as an apprentice wizard, Morgan LeFay's nephew.

Annie and Jack travel back in time to the first Olympic games to retrieve a lost story. There they learn a lot about what girls were — and were not — permitted to do in Ancient Greece.

This lively, informative companion volume to Eve of the Emperor Penguin provides more particulars about the Antarctica and its inhabitants. This book, as well as others in the series, will encourage children to want to learn more.