"In Rescue on the River, the third book in a three-part story arc focusing on the US Civil War era, cousins Patrick and Beth attend Abraham Lincoln's inauguration and discover that their friend's brother Kitch is a slave in South Carolina. The cousins search for Kitch as they travel down the Combahee River with Harriet Tubman. They help with the secret mission of the Second South Carolina Volunteers, an African American unit. Will they be able to...

"After tsunami waves sweep over the Imagination Station, it breaks down completely. Patrick and Beth wash up on the shores of Japan on September 1, 1923. The cousins fear if the waters doesn't get them, the earthquake will! Disaster engulfs the city of Tokyo, leaving families and friends separated and desperate. Thanks to a Japanese celebrity and a performing elephant, the cousins escape the worst of the earthquake and aid an abandoned child. They...

Cousins Patrick and Beth work to protect runaway slave Sally as they travel by train with President-elect Abraham Lincoln through northern New York state in 1861 aboard The Lincoln Special, getting assistance from Mrs. Mary Todd Lincoln and her son Willie along the way.

While searching for Eugene, who is missing somewhere in time, time-travelling cousins Patick and Beth arrive on an orphan train heading west in 1874 and befriend an orphan falsely accused of being part of a train robbery.