Patrick and his cousin Beth travel back in time to ancient Rome, where they meet Telemachus and help put an end to the spectacle of gladiators fighting to the death.

Beth and Patrick time travel to 1950s and 1960s Equador where they come in contact with missionaries and the Waodani people.

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...

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.

Patrick and Beth travel to northern Africa where Beth tries to prevent a girl her own age avoid becoming a sacrifice to a vicious dragon killing the local town's livestock and Patrick joins a Roman knight on a quest to kill the dragon.

"When the cousins hide at a farm with Dutch Resistance workers, they are given a secret mission: smuggling a Jewish baby to her mother." -- Back cover

Mr. Whittaker uses the Imagination Station to transport cousins Patrick and Beth to the Holy Land in 1000 B.C., where Hugh is trying to change history by helping the Philistines defeat the Israelites.

"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...

"Travel two centuries back in time to the final battle of the American Revolution at Yorktown, Virginia. Cousins Patrick and Beth sneak through trenches and race across battlefields to warn General George Washington about a dangerous spy. The spy is stealing his secret plans and giving them to the British. Cannons roar and the ground shakes as the struggle reaches a climax. Washingtons ragtag soldiers are up against the most powerful army in the world....

When time-traveling cousins Patrick and Beth use the Imagination Station to go to Plymouth Colony in 1621 hoping to find Hugh and return him to his own time, they meet William Bradford, Myles Standish, and Squanto.