Chapters 8, 9, and 10 Summary

Chapter 8 - Ruben, Rossoff, and Danziger go over Si's story repeatedly to determine whether he really was back in 1882 or whether he merely imagined it. Finally, the detail of seeing the woman in the window of the museum makes it definite - the window could not be seen from the window in the present day because there are other apartments in the way. The sudden, intense jubilation of the scientists that their theory has been proven correct quickly gives way to more scientific activity as they examine Si's memories to determine whether his knowledge of the present world, or indeed the present world itself, has changed because of his journey. Everything checks out fine.

After a date with Katie, after which she seems slightly disappointed at his explanation of his absence, Si returns to the apartment in the Dakota - the...