Alexandria in the time of the Roman Empire was a remarkable place in a fascinating time - and that 19s just in the real world. When Thomas K Carpenter begins to speculate about what could have been, it goes to a whole new level of wonder.
Central to this story is the idea that Heron of Alexandria, greatest inventor of the age, finds a way of harnessing steam power. But woven around that is a fast paced mystery / adventure, full of colourful characters (many, like Heron, based on real people.
Carpenter demonstrates a real understanding of the ancient cities complex mix of politics, religion and economy. The Romans rule 13 their presence resented but their power feared. The Temples vie with each other for popularity, each seeking to recruit the most talented engineers to build the most spectacular 18miracles 19 with which to attract followers. The Great Library is the worlds supreme storehouse of knowledge in all the world, in spite of the fire which destroyed much of its vast store of manuscripts. The city is proud and prosperous on the surface, but underneath it seethes with unrest and is full of dark secrets.
Heron, driven by the pressure of debt (and the threat of harsh justice for debtors) takes on commissions to build new war machines which may threaten the stability of the restless city 13 and seeks for hidden knowledge that some would rather keep hidden.
And another interesting element is that, in this version of history, Heron is actually a women 13 the sister of the real (and deceased) Heron who has taken over his identity and his workshop in order to pay of the huge debts he had incurred. This enables Carpenter to explore some of the issues surrounding sexual inequality in those times 13 as well as giving the plot another twist, since Heron must keep her real identity secret at all times.
It is a wonderfully colourful mixture, skilfully put together and developed towards a powerful climax that takes history down a very different route!
There are, unfortunately, some drawbacks. The flow of the writing is broken in a number of places by what to me seemed a strange choice of words or an awkward sentence. And I thought that more could have been made of both the technical complexity and the social impact of the world 19s first working steam engine 13 almost two millennia before the Industrial Revolution. To be fair, though, this is the first book in a series, and some of these issues may be explored in later books.
These caveats aside, this is a very enjoyable and well put-together story, exploring one of the most intriguing 18what ifs 19 of alternate history.
There 19s also a useful Afterword, giving some of the historical background, including some interesting ideas on why the industrial revolution didn 19t, in fact, get started in Alexandria.