Praying with St. Faustina Prayer book for the Holy Souls. Susan Tassone, known worldwide for her work to empty purgatory, turns to St. Faustina, known as an Apostle of Mercy, as a powerful guide to help us devote ourselves more intensely to the duty and privilege of praying for the holy souls in purgatory. Here you will find a wealth of spiritual tools including devotions, meditations, novenas, and prayers, coupled with the wisdom of St. Faustina that you can use to join in this soul-changing mission. Paperback, 164 pages.