A nun is forced to leave her quiet life at a convent when an all-powerful artificial intelligence known as Mrs. Davis enlists her to complete an epic quest.

Simone and Wiley’s hunt for Clara, the red-haired woman, leads them to an enigmatic new source and together they uncover the dangerous truth about their connection to her.

With the Lazarus Shroud secured, Simone and Celeste set sail on a perilous journey in pursuit of the Holy Grail. Wiley receives an unexpected offer from Mrs. Davis that could rewrite his future.