Put on your thinking cap
Quinn Alexander
Second-graders Marco and Abby find a mysterious map in the school library, after which they take a trip into the past with the class pet, a cockatoo named Wordsworth.

by K.M. Topping (2013)
Hunter Crispian, a 15-year old lacrosse player, his little sister Tilly, and his lacrossse teammate Chase, are transported back to the year 1711, where they are caught in the middle of a conflict between two Native American tribes. "When the chiefs declare a ... lacrosse game known as "Little Brother of War," Hunter and Chase soon learn that this will be no ordinary lacrosse game. In a contest without pads or helmets, rules or referees, the stakes are high. Win and the children shall go free. Lose and Hunter will die."--Back cover.
Quinn Alexander
Second-graders Marco and Abby find a mysterious map in the school library, after which they take a trip into the past with the class pet, a cockatoo named Wordsworth.
Mary Pope Osborne
Jack and his younger sister take a trip in their tree house back to ancient Egypt, where they help a queen's mummy continue her voyage to the Next Life.
story adaptor, Sandra Jackson-Opoku
With the help of the Lollipop Dragon and the Magic Mirror, Prince Hubert of Tumtum goes back in time to learn about Christoper Columbus and the significance of Columbus Day.
E.D. Baker
Many years ago a slighted fairy placed a curse on a beautiful young princess--a curse that caused her and all her female descendants to turn into mean, ugly witches if they ever touched a flower after turning sixteen. Now, Princess Emma, who is about to turn sixteen herself, is determined to break the spell once and for all. Emma travels back in time to the day the curse was placed on her ancestor in the hope of preventing the curse from being cast. Unfortunately she isn't successful in her efforts, but she does learn how to break it. Armed with this knowledge, Emma returns to her own time full of hope. But disaster ensues and Emma is about to give up completely--until true love shows itself in the most unexpected place of all. With a bit of courage, a pinch of luck, and of course, a healthy dose of magic, Princess Emma charms her way through the third hilarious adventure in this series.