Title: One of the best time travel books ever...
Review: maybe THE best, though I can't claim to have read them all. This book was my introduction to Gordon Dickson, who has been one of my favorite SF authors ever since. This is a deeply plotted story that develops with the characters. The scope begins at a simple, personal level and builds to galactic proportions. The narrator/main character is a gruff, usually stoic individual (like other Dickson main characters), but his emotions nevertheless come out reluctantly in the telling. I reread it every couple of years and it always seems new. Well worth the time.
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