Ranger in Time Series by Kate Messner, Kelley McMorris

Meet Ranger! He's a time-traveling golden retriever who has a nose for trouble . . . and always saves the day!Ranger has been trained as a search-and-rescue dog, but can't officially pass the test because he's always getting distracted by squirrels during exercises. One day, he finds a mysterious first aid kit in the garden and is transported to the year 1850, where he meets a young boy named Sam Abbott... moreMeet Ranger! He's a time-traveling golden retriever who has a nose for trouble . . . and always saves the day!Ranger has been trained as a search-and-rescue dog, but can't officially pass the test because he's always getting distracted by squirrels during exercises. One day, he finds a mysterious first aid kit in the garden and is transported to the year 1850, where he meets a young boy named Sam Abbott. Sam's family is migrating west on the Oregon Trail, and soon after Ranger arrives he helps the boy save his little sister. Ranger thinks his job is done, but the Oregon Trail can be dangerous, and the Abbotts need Ranger's help more than they realize! less

Ranger, the time-traveling golden retriever, is back for the second book in Kate Messner's new chapter book series. This time, he's off to save the day in ancient Rome!Ranger is a golden retriever who has been trained as a search-and-rescue dog... moreRanger, the time-traveling golden retriever, is back for the second book in Kate Messner's new chapter book series. This time, he's off to save the day in ancient Rome!Ranger is a golden retriever who has been trained as a search-and-rescue dog. In this adventure, Ranger travels to the Colosseum in ancient Rome, where there are gladiator fights and wild animal hunts! Ranger befriends Marcus, a young boy Ranger saves from a runaway lion, and Quintus, a new volunteer gladiator who must prove himself in the arena. Can Ranger help Marcus and Quintus escape the brutal world of the Colosseum? less

Ranger is a time-traveling golden retriever with search-and-rescue training. In this adventure, he goes to a Maryland plantation during the days of American slavery, where he meets a young girl named Sarah. When she learns that the owner has plans to sell her little brother, Jesse, to a plantation in the Deep South, it means they could be separated forever. Sarah takes their future into her own hands and decides there's only one way to run -- north.

Ranger, the time-traveling golden retriever with search-and-rescue training, goes to Viking age Iceland!Ranger is a time-traveling golden retriever with search-and-rescue training. In this adventure, he goes to Viking age Iceland, which proves to be tough terrain for Ranger to navigate. Usually it's Ranger's job to save the day before he can return to his family, but he meets a girl named Helga who rescues him more than once... moreRanger, the time-traveling golden retriever with search-and-rescue training, goes to Viking age Iceland!Ranger is a time-traveling golden retriever with search-and-rescue training. In this adventure, he goes to Viking age Iceland, which proves to be tough terrain for Ranger to navigate. Usually it's Ranger's job to save the day before he can return to his family, but he meets a girl named Helga who rescues him more than once. And when a nearby volcano threatens to erupt and Helga's new baby brother or sister starts to come early, they must journey through ash and smoke to find Helga's father. But if Helga doesn't need Ranger's help, how will he ever get home? less

Ranger, the time-traveling golden retriever with search-and-rescue training, heads to Normandy during World War II!In this adventure, Ranger heads to Normandy on the morning of the D-Day invasion and finds himself in the middle of one of the fiercest battles of World War II. Ranger meets Leo, a Jewish boy who is hiding with a local farmer, and Walt, a young African-American soldier fighting to free France from the Nazis... moreRanger, the time-traveling golden retriever with search-and-rescue training, heads to Normandy during World War II!In this adventure, Ranger heads to Normandy on the morning of the D-Day invasion and finds himself in the middle of one of the fiercest battles of World War II. Ranger meets Leo, a Jewish boy who is hiding with a local farmer, and Walt, a young African-American soldier fighting to free France from the Nazis. Walt is in the 320th Balloon Battalion, so it's his job to help operate the enormous barrage balloons that fly over the American troops, shielding them from enemy planes. It's pure chaos, with thundering warplanes, falling bombs, and exploding land mines. Will Ranger, Leo, and Walt survive? less

Everyone says the Titanic is unsinkable, and Patrick Murphy believes this most of all. He grew up near the shipyard where the magnificent ship was built and officially started working there when he turned thirteen. He's even been chosen to be part of the crew during the Titanic's maiden voyage! Ranger meets Patrick before the ship sets sail, and once on board, they befriend Maryam and Hamad. But one night, the ship hits an iceberg and starts to take on water... moreEveryone says the Titanic is unsinkable, and Patrick Murphy believes this most of all. He grew up near the shipyard where the magnificent ship was built and officially started working there when he turned thirteen. He's even been chosen to be part of the crew during the Titanic's maiden voyage! Ranger meets Patrick before the ship sets sail, and once on board, they befriend Maryam and Hamad. But one night, the ship hits an iceberg and starts to take on water. It's a race against time for Ranger and his friends to help get as many passengers -- including themselves -- off the ship before it's too late. less

Ranger, the time-traveling golden retriever with search-and-rescue training, travels to New York City on the morning of the 9/11 attacks.COURAGE IN THE FACE OF DANGER!Ranger has never needed his search-and-rescue training more than when he arrives at the World Trade Center on September 11, 2001. There he meets Risha Scott and her friend Max who have come to work with Risha's mother for a school project... moreRanger, the time-traveling golden retriever with search-and-rescue training, travels to New York City on the morning of the 9/11 attacks.COURAGE IN THE FACE OF DANGER!Ranger has never needed his search-and-rescue training more than when he arrives at the World Trade Center on September 11, 2001. There he meets Risha Scott and her friend Max who have come to work with Risha's mother for a school project. But when the unthinkable happens and the building is evacuated, Risha is separated from her mom. Can Ranger lead Risha to safety and help reunite her family? less