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.

Cousins Patrick and Beth travel in Mr. Whittaker's invention, the Imagination Station, to thirteenth-century China, where they meet Marco Polo and Kublai Khan and are mistaken for Christian shamans.

Eight-year-old cousins Patrick and Beth find themselves 1450's England during the War of the Roses, where they discover the missing treasures and meet the person who has been sending notes through the Imagination Station.

Cousins Patrick and Beth are separated when they travel to Fiji to preach to the cannibals.

Time-traveling cousins Patrick and Beth go to ancient Egypt, where they try to find ways to encourage Tabitha, a Habiru girl, and her people, who are being enslaved, to keep faith and hope alive, by exploring the tomb of her people's prince.

"Knowing that death is in store for the Baby Jesus if the soldier finds Him, Beth and Patrick carry out a plan to keep the baby safe"--

"British warships battle American privateers in this high sea adventure. Cousins Patrick and Beth have landed on the Royal Louis in the middle of the Revolutionary War. Cannonballs fly and swords slash. They're captured! Now they face even more dangers. Will their new friend James Forten be sold by the British into the West Indies slave trade? Or will they all be sentenced to the overcrowded prison ship floating near shore where scores of prisoners...

"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....

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

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...