I would stay away from Fitzinfo. One can raise all the doubts one wants about Fatima, but it's difficult to doubt or dismiss the simple testimony of three Portuguese children. They did not obfuscate or lie, because, simply, they were incapable of deception. it's impossible to discount the Miracle of the Sun, which even Masonic newspapermen saw with their own eyes and were forced to acknowledge. Either the current pope, (which I doubt), or a future unknown pope will consecrate Russia to the Immaculate Heart of Mary, and there follow a period of peace. Our Lady said it would come late. It is late, to be sure, but The Virgin cannot lie. Remember, even a modernist pope like B16 told us that the story of Fatima was not yet over.
Michael Hoffman, like Fitzinfo, plays down the Fatima narrative. It is for that reason that I do not pursue an earlier friendship with Hoffman. I think he is probably right about a number of historical assessments, but concerning Fatima, he has seriously erred. I won't accuse Michael of being a heretic or promoting heresy. But it is necessary to note, that even if he were one, a heretic, like a broken clock, can be right two times a day.