What is the author's style in The Master by Colm Toibin?

The Master is told entirely in the third person, though it focuses exclusively on Henry James. Every thought and every event is from Henry's perspective, and the novelist adopts a tone appropriate to Henry's disposition to describe his world. The narrator knows only what Henry knows, such that when Henry encounters Webster and Lady Wolseley in a curious conspiracy, the nature of their relationship is never made explicit.

The book is often heavy with a sense of doom, with the multiple deaths of Henry's friends weighing down the narrator's perspective. The narrator largely observes the same sense of decorum that Henry values so highly, doing his best not to pry and subtly insinuating bits of gossip rather than relaying them outright.