World Between Worlds

A novel based on the early life of Caterina, the Mystic of Siena

Leap into the medieval world of Caterina, who defied all social norms to follow the mystical calling of her heart.


World Between Worlds:

A Novel Based on the Early Life of Caterina, Mystic of Siena

World Between Worlds is Jenny duBay’s unforgettable story of one of the most dynamic personalities of the Middle Ages, Catherine of Siena. Set in the tumultuous fourteenth century, World Between Worlds takes readers on a journey across the landscape of medieval Tuscany, through the eyes of a mystic who is entangled in political chaos, social upheaval, and spiritual awakening.

Ever since she experienced her first vision at the age of six, Caterina di Giacomo of Siena has been prone to mystical insights and spiritual revelations, yet the chaotic world around her isn’t tolerant of her supernatural inclinations. Her unconventional lifestyle, her ability to foretell future events, and her unnatural wisdom are suspect in the eyes of many. Women in fourteenth century Tuscany have only two choices in life—marriage or the convent. Caterina defiantly refuses both to follow her own path, an independent lifestyle no woman before her dared attempt. Amid the struggles to follow her inner path, Caterina— who has been blessed with the prophetic grace to help heal afflicted and struggling souls— finds the outside world is frazzled with political instability, city-wide bloodshed, and a Church in disarray.

Following Caterina’s early life, from mystical seclusion to her budding influence within the spiritual and social circles of her times, World Between Worlds is a novel of turmoil and redemption.

Jenny duBay’s writing is epic, fervent and painterly in its detail, tender and moving in individual scenes and in overall effect. duBay has inhabited the world and mind of her character such that her extensive research has emulsified into a living story. Its heart has a beat, and it’s almost like novel as veneration. Honest and dramatic, it both educated me and moved me to tears on more than one occasion, particularly when it dipped into such achingly reverent, personal language from Catherine to Christ that I felt almost forced to stop reading and begin praying myself. For this reason, I’m inclined to also call it novel as evangelization.” 

(Franci Revel Eckensberger, Paloma & Fig)

Read the full review from Paloma & Fig here.

  • ASIN ‏ : ‎ B0F4KS7VDZ

  • Publisher ‏ : ‎ En Route Books & Media

  • Publication date ‏ : ‎ April 10, 2025

  • Print length ‏ : ‎ 503 pages

  • ISBN-13 ‏ : ‎ 979-8888702727

There’s More to Come!

As I prepare to write the sequel to World Between Worlds, I’ll be delving deeper into my research through both scholarly studies and real-life experiences. Subscribe to my mailing list to receive mini-articles on the life of St. Catherine of Siena, and connect with me virtually on my upcoming travel blog as I journey to Europe to again walk in the footsteps of Caterina. Experience her world, see the sites she saw, and get to know the real-life person of Caterina of Siena!