BOOM! Studios has announced a new one-shot featuring everyone’s favorite warrior nun Sister Marian in Marian Heretic: Book of Joan #1, featuring Tini Howard and Joe Jaro’s “signature storytelling of rebellion, sexuality, and the hard truth that sometimes in order to follow your faith, you have to sin a little.”
Read details below:
With Sister Marian sidelined by a magical affliction, Ravenna must lead Sister Joan back into the City of Vespers to confront a new order of nuns wielding their own brand of witchcraft to keep Marian and her fellow Sisters out of the City.
Disguised as new members of the convent, Ravenna and Joan must uncover the nature of the witches’ magic—and the harm it’s inflicting upon their Holy Mother before things get too far out of hand
Marian Heretic: Book of Joan #1 is available for pre-order from your local comic shop until January 4, 2027, and is set to debut on February 17, 2027. Digital copies will be available on iBooks, Google Play, and Kindle.
Ahead of the debut, check out an exclusive cover reveal here!












