"I've quit my job and for the next few years I'm just going to work at this full-time. I don't know what's going to happen but I'm really going to try and make a go of this."
A life-long Star Wars fan, Wilson discovered Tolkien's The Lord of the Rings before immersing himself in the role-playing game Dungeons and Dragons. "The fantasy side of science fiction has always been a big deal to me," he recalls. "When I came back to writing, I thought, 'I used to be into fantasy so why not try it again but combine it with historical fiction, which I'm also into?'
"I started reading a lot of contemporary sci-fi and fantasy and it seemed a lot more open and broader than I remembered it being. It seemed like a good time to get back into it."
Along with best-selling historical novelists like Bernard Cornwall and Patrick O'Brian, Wilson takes his cue from modern-day fantasy scribes like Naomi Novak and Jasper Kent, who have added supernatural elements like dragons or vampires to past conflicts like the Napoleonic Wars. Though the book is set in a mythical 19th century England and takes the 1850s Great Indian Rebellion as its starting point, Land Of Hope And Glory is influenced by Wilson's formative experiences in Cape Town and Christchurch.
"My parents were anti-apartheid activists, which is partly why we left the country," he says.
"We were always talking about that kind of thing when we were young. In New Zealand, you've got the Treaty of Waitangi and all the issues around that. It was very much on my mind and I don't know whether someone who was born and bred in Britain would think that way. The story is a bit like, what if England was like what New Zealand was in the 19th century."
It is centred around former soldier Jack Casey - charged with tracking down his former colleague and best friend William Merton, who has become the enigmatic resistance leader The Ghost. The story boasts echoes of Joseph Conrad's 1899 post-colonial novel Heart of Darkness, which has informed many films and novels down the years, most notably Francis Ford Coppola's Vietnam War epic Apocalypse Now.
"The next book draws on that even more," says Wilson, "particularly the ideas they had in the 19th century about savagery and civilisation. I also had things like King Solomon's Mines and Rudyard Kipling's stories in mind. A lot of them are great adventure stories but they're totally politically incorrect. But by flipping things over and being a bit ironic about things, you can tell stories a little bit like that. I wanted it to be a good fantasy read but I'm glad that people are picking up on the things I was thinking about."
Hard at work on the second instalment, Wilson initially conceived Land Of Hope And Glory as a fantasy trilogy. "If it goes well, they might ask for more books set in that world," he says. "But I've definitely got enough ideas for three books and I'm going to round it off at the end of the third. The second book is set a little bit in Scotland and continues Jack's struggles against the Rajthana."
Land Of Hope And Glory (H&S Fiction $39.99) is out now.