The writing is simplistic. At times the novel is hard to get through, but it has one of the best opening lines. "Hill House, though abandoned, had remained unscathed during the years of the Dragon's occupation" (7). If the reader had previously read Heartless, the first in the series, they would know that the Dragon took over the country and left nothing untouched by poisonous smoke - except apparently Hill House. Why? Readers have to continue the book to find out what's so special about Hill House that the Dragon left it. And, we find out more of the story of Leonard and Una and why he gave her up when challenged by the Dragon in Heartless.
The ending is heartbreaking but I won't spoil it for readers!
Looking into the author's statement and life, one finds the story is a Christian allegory, which may turn some readers off, but it's not a heavy allegory. Lets see if the readers can put together the allegory - I think I managed to do it.
The genre is fantasy and will thrill people who love fantasy!
Praying you have faith, hope, and love always,