Siblings Grant and Christina embark on a journey westward aboard a covered wagon with their grandparents, Mimi and Papa, to follow the path of the Oregon Trail, but along the way, the family encounters a mystery amidst their adventure.
When a young pioneer girl smuggles a cat aboard the wagon train taking her family from Missouri to Oregon, it turns out to be the best thing she could have done.
Eight-year-old Sarah's high spirits help make her family's long journey from Missouri to Oregon more bearable, though they do cause both her and her best friend Almira Ann some problems.
Charts the journey of those who followed the Oregon Trail in the first half of the nineteenth century, describes the obstacles and dangers they encountered, and discusses the Trail's eventual decline with the introduction of the cross-country railroad.