3.51 avg rating — 1,026 ratings

"Basic time travel"

3.73 avg rating — 8,862 ratings

"A majority of the story takes place with entire scenes from the distant past, and the concept of a disjointed planet Mir is science fiction."

3.78 avg rating — 108,423 ratings

"Time travel and humor"

3.98 avg rating — 8,237 ratings

"Past viewing is a neat fictional concept and does involve a great deal of distant history."

4.03 avg rating — 65,086 ratings

3.78 avg rating — 6,010 ratings