"Where did the tree house come from? Before Jack and Annie can find out, the mysterious tree house whisks them to the prehistoric past. Now they have to figure out how to get home. Can they do it before dark ... or will they become a dinosaur's dinner?" --

Jack and Annie travel back to Victorian London when Merlin asks them to use their magic to inspire Charles Dickens to write "A Christmas Carol."

The magic tree house takes Jack and Annie back in time to feudal Japan where the siblings learn about the ways of the Ninja.

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles -- which will take four books, of course! Dolphins at Daybreak begins the third set of four books in this magical (and increasingly popular) series! Jack and Annie are off in the Magic...

Two very hungry dinosaurs discover a time machine and are instantly transported to America in 2018, where they are delighted to find themselves surrounded by food (including pizza and doughnuts), but soon less excited to find themselves surrounded by policemen with guns--so they escape to the time machine, not knowing where it will take them next.

Jack and Annie travel to Vienna, Austria, in 1762 where they meet the young Wolfgang Amadeus Mozart and his sister and help save the budding genius' life.

"Jack and Annie search for the fourth secret of greatness for Merlin the Magician in Mexico City at the 1970 World Cup Games. They hope to learn something new from soccer player great, Pele"--

"The magic tree house whisks Jack and Annie to Africa where they must use magic to save a rhino and her baby from poachers"--

Its 1852 and cousins Patrick and Beth sail to Fiji on the HMS Calliope under the command of Captain James E. Home. They arrive at the islands to find that the Christian Fijians are at war with the non-Christian Fijians. Missionary James Calvert is trying to make peace and suggests that the captain allow peace negotiations on board the British vessel. Patrick and Beth learn about sacrificial living when they observe Calverts determination to live on...

An accident in Professor Quack's lab sends Gordon Blue (otherwise known as Kung Pow Chicken) and his companions, Egg Drop and Beak Girl, back to dinosaur times, where they meet Dr. Strangebok, an evil chicken who wants to bring dinosaurs to Fowladelphia and take over the city--and the three superheroes, with help from a friendly dinosaur named Sweet Tooth, must find a way to stop her before she turns the city into a buffet lunch for her dinos.