Greg's Fifth Adventure in Time (Adventures in Time)

From learning new skills at the Smithsonian's Time Travel Investigative Unit's headquarters to time-traveling in Canada's Yukon and Scotland's Highlands, Greg and Rose will thrill you with their new adventures. Time-traveling has never been more fun and intense. Now sixteen-years-old, Greg and Rose end up on different continents where they make new friends and experience whole-new worlds. The Pirate makes an appearance, as do horses, a bear, highwaymen, and, of course, a moose Come time-travel once again with your favorite duo of fearless time travelers

Greg's Fifth Adventure in Time continues the story of the first four books but can be read as a stand-alone book.