内容简介：
What would you do if you moved to a new house only to discover that it contained a secret passageway? And what if you went down that secret passageway and found yourself back in time? A hundred years back in time Two brothers, led by their adventurous younger brother, do just that. The brothers find themselves in Watertown, New York, in the year 1891. They have twenty-four hours in which to explore, stay out of trouble, and still make it back to the passageway before it is too late to return to their own time. Along the way they meet some interesting characters including a man they realize will contribute to the history of New York State, Roswell P. Flower. Join the boys on their trip through time and learn what life was like in 1891.