Fatima apparitions - Third apparition of Our Lady

She Answered: "you continue to come here. In october I will tell you who I am, that which I want, and I will do a miracle that all can see and believe. Sacrifice yourselves for sinners, and say often this prayer, especially during any sacrifice: "O my Jesus, I offer this for love of Thee, for the conversion of poor sinners, and in reparation for all the sins commited against the Immaculate Heart of Mary.". As she spoke these words, Our lady stretched out her hands, and bright rays came forth which seemed to penetrate into the earth. All at once the ground vanished, and the children saw Hell, frightened they lifted their eyes to the Lady who told them:"You have seen Hell, where the souls of poor sinners go. To save future souls God wishes to establish in the world the devotion to My Immaculate Heart. If people do what I tell you, many souls will be saved." Then She said:" If my requests are granted, Russia will be converted and there will be peace. If not, she will scatter her errors throughout the world, provoking wars and persecution of the Church. The good will be martyed, the Holy Father will have much to suffer, and various nations will be destroyed...But in the end, my Immaculate Heart will triumph. The Holy Father will consecrate Russia to me, Russia will be converted, and a certain period of peace will be granted to the world". "Do you want to learn a prayer?" the vision asked, "Yes we do!" the children responded. "When you recite the Rosary, say at the end of each decade: Oh My Jesus, forgive us our sins, save us from the fires of hell, and lead all souls to Heaven, especially those in most need of Your Mercy."