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.

The first Magic Tree House® Super Edition—and Jack and Annie’s most dangerous mission ever in the scariest time the world has ever known—World War II. With a longer story and additional facts and photographs, this is a thrilling adventure no reader will want to miss!
 
When the magic tree house takes Jack and Annie back to World War II, Europe is in trouble! It is June 1944 and the brother-and-sister...

When a mysterious note invites them to Camelot, Jack and Annie travel in the magic tree house to the magical kingdom where they must find a lost dragon.

Jack and Annie travel to a monastery in the Swiss Alps where, with the help of St. Bernard dogs and magic, they seek the second of four special objects necessary to break the spell on the wizard Merlin's beloved penguin, Penny.

Features Jack and Annie back in Egypt, still seeking the secrets of greatness for Merlin. This time they meet the great nurse, Florence Nightingale, on her trip to Egypt that served as the inspiration for the choices that made her both famous and beloved.

Jack and his younger sister, Annie, go on a series of extraordinary adventures as they use their magical tree house to travel through time.

Jack and Annie travel back to 19th-century Ireland to inspire a young Augusta Gregory to share her love of Irish legends and folktales with the world.

Dogs in the Dead of Night
Jack and Annie must find a rare flower to save one of their best friends! So when the magic tree house whisks them back in time to the Swiss Alps, they're confused. How can they find a flower buried under ice and snow? When they find an ancient monastery where monks and St. Bernards live, Annie offers to train a young dog named Barry. Then Barry runs away from the monastery, and Jack and Annie have a new task—find...

Haunted Castle on Hallow's Eve
The castle looms dark against the light of the moon. Merlin the magician needs someone smart enough to solve the mystery of how the castle became haunted and return it to its rightful owners—so Jack and Annie take on their second Merlin mission in the magical realm of Camelot.

Summer of the Sea Serpent
Jack and Annie are off on another mythical mission at the request of Merlin...

For this book, best-selling children's author Mary Pope Osborne was inspired by a Fourth of July she spent in a small Pennsylvania town. Her warm account captures the joy of America's favorite summertime celebration. On the Fourth of July, a family joins the rest of their town in Memorial Park to celebrate America's Birthday. When the sun goes down, everyone sits on the grass for the concert. The band plays, then the fireworks start. Millions of lights...