Who is the narrator, can she or he read minds, and, more importantly, can we trust her or him?
Third-Person Limited
If you don't count the Prologue, this book never wavers from its third-person limited narrator. And by that, we mean that the narrator is a third-person speaker who never really tells us anything that Father Latour doesn't know. Even when we hear info that sounds like it's coming from somewhere else, we later find out that this info is stuff that Latour already knows. Take this passage, for example:
It was Manuelito's hope that the Bishop would go to Washington and plead his people's case before they were utterly destroyed. (9.7.5)
We find out in just the next line that Manuelito is standing in front of Latour and telling him this info, so the narrator never breaks with the limited scope of Father Latour's perspective.
As we mentioned, the Prologue is an exception to the "limited" part of this narrator's perspective. Father Latour doesn't even show up in the Prologue, which instead centers on the four religious officials who are deciding to send Latour to New Mexico. The only other time in the novel that the narrator breaks from Latour's perspective is in the final paragraphs, after Latour has passed away:
When the Cathedral bell tolled just after dark, the Mexican population of Santa Fe fell upon their knees, and all American Catholics as well. (9.8.6)