Fr. Paul O'Sullivan was an Irish Dominican priest made famous by his extraordinary spiritual writing. Born in Tralee, Ireland, in 1871, Fr. Paul entered the Dominicans and was ordained in Rome in 1894. Because of poor health, he was sent to Lisbon, Portugal, in 1895, and, rather than passing a sabbatical on sick leave, he instead planted down firmly in Portugal, where he started an apostolate of writing and preaching that lasted over 60 years. Throughout the early decades of Fr. Paul's stay in Portugal, the country was undergoing a Masonic, anti-Catholic, atheistic revolution that declared "no God and no religion." It was Fr. Paul's determination to oppose this satanic ideology, and he began an apostolate of publishing in both Portuguese and English that grew with tremendous vigor, while also serving as a sought-after spiritual director. It was in this extraordinary apostolic endeavor that he wrote many masterpieces of spiritual literature, true classics in our time. Here, in the Fr. Paul O'Sullivan Set, discover the following gems from this mainstay author's illustrious and edifying pen:

Saint Philomena: The Wonder-Worker: Though nothing historical is known of her, Saint Philomena, the titular Wonder-Worker, was declared a Saint in 1837, only 35 years after the discovery of her relics. This book recounts the whole incredible story, plus many accounts of her tremendous favors and miracles. She is another St. Jude to call on in our desperate needs.

The Holy Ghost, Our Greatest Friend: He Who Loves Us Best is a beautiful little book "all about the Holy Ghost," including prayers to Him, the third Person of the Trinity and true God. This book shows that the Holy Ghost really and truly dwells in every soul in the state of grace and that He aids all true Christians without exception, if only we will ask His help.

Inside the pages of How to Be Happy, How to Be Holy, find lovely, short anecdotes from the lives of the Saints, showing us in a warm, encouraging, and inspiring way the importance of prayer and the ease with which we can all derive great benefits therefrom, without yet being Saints ourselves. This book covers the meaning of basic Catholic prayers, the Mysteries of the Rosary, and the wonders of the Mass. It was written for all, and all should read it.

The Wonders of the Holy Name urges us to invoke the name of Jesus often. By reverent use of the Holy Name, we can glorify God, call on His aid, pay our spiritual debts, and assist the Poor Souls.

All about the Angels shows how the angels have visited people innumerable times in the past, how they do so today, and how they would do even more if we asked them. It also demonstrates how they prevent accidents, comfort us, help us, and protect us from the devils. Presented are many beautiful stories about St. Michael, St. Raphael, and St. Gabriel—plus, angel stories from St. Gemma Galgani, St. Thomas Aquinas, and St. John Bosco.

The Wonders of the Mass describes how "the Mass is the greatest wonder in the world," seconded only by "the next greatest wonder . . . the indifference and ignorance of Catholics regarding the Mass." Included are quotes from Saints and Our Lord Himself in revelations to various Saints. Here is much instruction filled with expositions on the glories of the Sacred Liturgy.