Rescue on the Oregon Trail (Ranger in Time #1)
2015
Danger in Ancient Rome (Ranger in Time #2)
2015
Disaster on the Titanic (Ranger in Time #9)
2019
Long Road to Freedom (Ranger in Time #3)
2015
Night of Soldiers and Spies (Ranger in Time #10)
2019
Escape from the Great Earthquake (Ranger in Time #6)
2017