Having sent the population on Nantucket back three thousand years in Island
    in the Sea of Time, S.M. Stirling continues their adventure in Against
    the Tide of Years. The novel opens about eight years after the
    "Event" which initially began the adventure. The Nantucketters
    have fought several wars, against both the indigenous populations and their
    own renegades, led by William Walker. Having defeated the locals, the Walker
    remains at large in the bronze age world, trying to carve out his own niche.
    The Nantucketters, of course, know that they will eventually have to deal
    with Walker, and elect to do so on their own terms rather than his. To this
    end, a diplomatic mission, led by historian-turned-councilman Ian Arnstein,
    travels to Mesopotamia to enlist the aid of the Babylonians against Walker.
    One of the primary themes of Against the Tide of Years is the
    introduction of advanced technology into relatively primitive cultures. In
    the past, authors such as Mark Twain and L. Sprague de Camp have tackled
    this issue by sending highly competent men to Dark Age England and Italy.
    While the results are good and entertaining, they suffer from the idea that
    one person could bring about such massive change. Stirling solves this
    problem by sending back a large enough population which would have the
    required composite knowledge along with their library as a supplement. At
    times, given the amount of detail Stirling provides, the reader gets the
    feeling that being sent back in time with a copy of Against the Tide of
    Years would be enough to provide the information needed to pull the
    bronze age into the twentieth century.
    The novel’s big weakness comes from the lack of diverse
    characterization. The Nantucketters seem to be interchangeable, although a
    few possess knowledge others don’t. They all seem to hold the same basic
    philosophy which the reader is supposed to accept. Unfortunately, this
    philosophy is one which does not leave any room for disagreement or cultural
    differences. Islanders who disagree with the general populace are
    ostracized, both by their own desire and the islanders. Walker, portrayed as
    a villain by Stirling, may do reprehensible things by twentieth century
    standards, however, he and his band of renegades are the only ones who even
    attempt to fit the mores of the second millennia BCE rather than mold the
    world to fit their own viewpoint.
    Rationality seems to be the characters’ catchword. On occasion, it
    would be nice if someone would show signs of emotion. Ian Arnstein, an
    historian specializing in bronze age culture, hardly pays any attention to
    his surroundings when he finally arrives in Mesopotamia. Rather than running
    around like a kid in a candy factory, trying to explore the archives and
    talk to the people, he stolidly goes ahead and does his duty for the
    Republic of Nantucket. Similarly, when another character discovers his
    sister, who never demonstrated any lesbian tendencies, having an affair with
    another woman, he doesn’t ask her about her newly discovered sexual
    orientation, but merely accepts it, asks her to dismiss the girl and begins
    to talk about upcoming military plans. In fact, Stirling’s relationships
    seem to boil down to passionless sex. There is little, if any, emotional
    interplay between Marion Alston and her lover Swindapa, or Ian and Doreen
    Arnstein. The act as colleagues rather than spouses. Even when Stirling
    writes about budding romances, there is no actual emotion demonstrated.
    The lack of emotion between characters extends to the plot. Stirling is
    obviously building to a showdown between the Nantucketters and the Walker
    renegades. Unfortunately, the reader doesn’t feel any real loyalty to one
    side or the other in the conflict. When the battle eventually occurs there
    is no real sense of tension. Stirling hasn’t managed to build up the
    capabilities of each side and, even though he has shown Walker’s
    depravity, Walker still seems to be something of a bogeyman rather than a
    serious enemy. Perhaps more interesting than the Nantucket-Walker struggle
    is the conflict between the Nantucketters and Isketerol, the native whose
    kingdom in Spain is based on his early dealings with the Nantucketters.
    While Walker bides his time, Isketerol is willing to risk what he has
    against the Nantucketters in several areas. He may come across like a Fidel
    Castro, Saddam Hussein or Slobodan Milosevic making war on the US, but a
    look at history shows that that type of war can cause as much damages as a
    more major war.
    
    Against the Tide of Years is a novel of ideas, not of characters or
    even plot. At the end of the four-hundred plus pages, very little has
    actually happened, although Stirling does spend quite a bit of time giving
    the technical information about what the Nantucketters and Walkerites are
    producing and how they go about doing it. For people who miss the old-time
    nuts-and-bolts science fiction, Against the Tide of Years may well
    provide them with what they are looking for.