When Fictionwise catalogued "New Blood" as a dark fantasy, my first reaction was to blame the cover art and mutter to myself, but then I reconsidered. A fantasy world created by a dying soldier in which the underlyng logic of his decisions takes charge to twist his creation out of shape does have dark elements, regardless of the outcome.
The same argument makes the next two books in the series dark fantasies as well, which will make the choice of cover art interesting. Will a lighter approach change the category Fictionwise applies to them?
I'm finding this series fascinating. Every development is controlled by the initial premise that this is an environment created by a man born in 1898 and dying in 2005. Nothing can be introduced that he wouldn't know, even when I venture into his distant future and the story's distant past. It simplifies the science considerably, because speculative discoveries he didn't have the tools to understand are barred.
This type of cogitation is what makes writing fiction so enjoyable.
It's a tough life.