When Jonah and Katherine travel to early 1900s Switzerland and Serbia to return Albert Einstein's daughter, Lieserl, to history, her mother Mileva grasps entirely too much about time travel and has no intention of letting her daughter go.

A summer spent in doing light housekeeping in a lighthouse proves to be a happy and adventurous time for the Boxcar children, as well as for their neighbor, Larry Cook, who does not want any friends.

The Alden children and their grandfather are hiking down from Flat Top when a rockslide reveals a cave with a big secret.

The magic tree house whisks Jack and Annie to Washington D.C. in the 1860s where they meet Abraham Lincoln and collect a feather that will help break a magic spell.

When three young sisters plant a tiny elm tree in their barren back yard, they find it beomes an integral part of their lives as they grow older.

Living in Las Vegas with his unsuccessful father, Nick Rostov learns on his thirteenth birthday that he is descended from a powerful line of Russian Magickeepers on his dead mother's side, and that the equally powerful but evil Shadowkeepers will stop at nothing to get an ancient relic that his grandfather gave him.

Ellie loves the Journey of the Mind club and struggles to keep from failing miserably on her soccer team, but when both groups have tournaments the same day, she musters her team spirit and tries to succeed at both.

Madeline and the other orphans of the vine-covered house in Paris spend Easter at the White House visiting with the President's daughter.

While sorting through difficulties in her friendship with her neighbor Margaret, eight-year-old Clementine gains several unique hairstyles while also helping her father in his efforts to banish pigeons from the front of their apartment building.

Henry, Jessie, Benny, and Violet Alden meet Mike Wood and a strange chain of events begins. Mike's house is mysteriously burned down, a man in a blue hat appears, and the Alden's uranium mine is in danger of being sabotaged. The four youngsters solve the mystery.