Final Impact is the third and final novel in the Axis of Time Trilogy following the impact on world events of the arrival during the second world war, via a worm-hole, of a naval task force from the late 21st Century. The preceding books, Weapons of Choice and Designated Targets, dealt with the immediate aftermath of the task force's sudden, unplanned time travel to the days just before the battle of Midway and the knock on effect this had on not only the war, but also politics, culture and society. Both books were entertaining slices of 'what if' alternative history science-fiction that tried to deal rationally with the possible effects of an utterly implausible event. They also managed to mix in some solid action, a nice sense of humour and reasonable character development.
Picking up events some months after the conclusion of volume two, Designated Targets, with World War II entering its final phases both in Europe & the Pacific and geo-political attention shifting towards the inevitable future confrontation between the Western Allies and Stalinist Russia, Final Impact should be a rousing and satisfying conclusion to the series. Unfortunately the author, John Birmingham, fumbles the pass at this late stage in the game and the result is an episodic mess of a novel that fails to live up to expectations.
From the first page of the book readers are thrown a curve ball, unsettling them. Without warning events have leapt on months since the conclusion of Designated Targets. So much so that major characters, both 'real' and fictional, have changed almost beyond recognition. Some have even died and the course of the warhas shifted dramatically. Rather than cover all these significant changes quickly and in a manner which is clear however, the author allows details to drip out in increments over the first hundred pages or so. Meanwhile the reader must struggle to work out what exactly has happened to major characters who played a significant part in previous events with almost no background information to go on.
Before they really have a chance to catch up however, they're plunged into events surrounding an alternative version of D-Day. Trying to cover this in detail however, is impossible; there's an entire book's worth of material just in that one event. Instead Birmingham goes for short episodes of action, focusing on one character at a time. This sets the tone for the rest of the book, with the narrative constantly hopping from one event to another, crisscrossing the world as it does so. Whilst this allows all the surviving characters to have their individual moments in the sun (including, enjoyably, Prince Harry) it turns the story into a mess. Plot strands are picked up and then unceremoniously dumped, never to be picked up again, and characters both major and minor jump from one place to the other, with huge gaps between that are either explained using clunky exposition or not at all. Over all it conspires to leave the reader confused and frustrated at the lack of a clear narrative structure.
It also prevents any area being handled with any significant depth. Gone are the incidental 'clash of cultures' details that helped make the previous books entertaining. In order to cram a series of world shaking actions and several months of time into what is a comparatively slim book events have to move on at an unrelentingly rapid pace. This means that significant events, from the D-Day to the death of Hitler to the arrival of the nuclear age are often paid nothing more than cursory attention before the story has to move on. It leaves the whole thing feeling rushed.
Mostly this is a result of trying to cram too complex a set of ideas into too short a book. To his credit Birmingham never tries to go for the easy answers. As with with events in the real world, not everything in the reality he's created is black and white or cut and dried. Good guys make bad decisions, bad guys sometimes win and the eventual outcome of this alternative WWII is not inevitably going to be a resounding victory for the forces of democracy. Trying to get all these concepts across and deal with all the 'what-of' strands he has thrown up is however, a mammoth task and one that Birmingham doesn't quite complete. Many events are dealt with too hurried a fashion and too many plot strands left hanging come the end. Whilst a clean cut ending with everything tied up in a nice bow would be unrealistic, the way Final Impact does end with so much unresolved, especially at a personal level for many characters, feel wholly unsatisfactory.
The concept behind the Axis of Time Trilogy is a great one and for two books it was very well handled. By trying to wrap up such a complex story in the space of one final volume however, John Birmingham has wasted a great deal of the series promise and potential. Expanding out to four books and taking more time with characters and story would have resulted in a far more satisfying conclusion. Instead this feels like a rushed and muddled effort that leaves the reader crying out for a better ending.