See this legally free ebook:

  • The Unseen World: An Exposition of Catholic Theology in its Relation to Modern Spiritism, by Rev. Fr. Alexis M. Lépicier, O.S.M. [later, Cardinal Lépicier] (London: Kegan, Paul, Trench, Trubner, & Co., 1906). With Imprimatur. May be read online, and available in various formats (pdf, epub, kindle/mobi, text, etc.) at Internet Archive.
    • Another imprint (New York, Cincinnati, Chicago: Benziger, 1906) may be read online, and is available in various formats, at Internet Archive; and it is also available at Forgotten Books, with some pages accessible by members alone. Chapter I of Part II, “The State of the Departed Soul” may be read online on this page of the EWTN Library.

Posted in view of the anniversary of the founding of the National Spiritualist Association of Churches in the United States.