"Rumored to be a witch, Nora Walker attempts to uncover the truth about a boy she discovers in the woods who went missing weeks ago during a brutal winter storm, only to learn that he wasn't the only one to go missing all those weeks ago"--

Time has gone wrong, and best friends Dak Smyth and Sera Froste, together with the young Hystorian Riq, must use the infinity ring to travel back to one of the Great Breaks--a mutiny on the Santa María--to correct history and defeat the SQ.

While Jake continues searching for his father and is sent by the obsidian mirror to multiple times in the past, Sarah and Venn battle with Summer for control of a powerful coin.

This time, meet famous explorer Leif Erikson and help save a narwhal! When the magic tree house whisks Jack and Annie to Greenland, they're not sure what time they've landed in, but they immediately know what their mission is: save a narwhal! Then, they meet a young hunter named Leif Erikson, and they ask for his help. But Leif has other ideas.

Children's birthdays are always strange in Willow Falls, but when Connor's little sister Grace falls into a frozen state on her tenth birthday, Amanda and Leo must travel back in time to find out what force prevented Angelina from casting the blessing that would have protected her.

Twelve-year-old Al Chaudhury discovers his late dad's time machine and travels back to 1984 with his pet hamster to prevent the go-kart accident that killed his father.

The magic tree house carries Jack and Annie to New York City in 1938 on a mission to rescue the last unicorn.

In this multiple-ending story, the reader is magically transported to a 1945 summer camp and must choose how their time is to be spent there with Molly, whether it be hiking, saving a dog, or anyone of the other many possible adventures.

Time travelers Jonah and Katherine arrive in 1611 to rescue missing child John Hudson, son of the explorer Henry Hudson, but just as the mutiny on the Discovery is supposed to start, Jonah and Katherine's knowledge of history is tested once again, and they fear that more is at stake than just one boy's life. Author's note includes facts about Henry Hudson's explorations.

Greedy Llama travels back in time to eat his marvelous birthday donut a second time, but a Baby Llama follows him to the present, and soon his house is a chaos of cave llamas, barbarian bunnies, and Viking pigs.