Lilith Unbound: The Chronicler's Oath. Lilith Unbound: Chronicles of Defiance, #4

Every chronicle demands its keeper. Every oath demands its price. In the fourth and final book of the Chronicles of Defiance, Michael Silvers-scholar, historian, and reluctant witness to the impossible-is chosen. In the Medici Library, when faceless entities emerge from the dark between the shelves, it is Lilith and Samael who pull him back from the edge of oblivion. When he wakes at his desk, a single line in his own handwriting tells him everything he needs to know: The Oath is given.
The Chronicler is chosen. Transformed at the molecular level, his body rewired by forces that predate creation itself, Michael must now navigate the language of creation, the forbidden chronicles, and the garden of shadows - all while standing at the intersection of the divine and the damned. From the House of Bones to the Via Dolorosa, from the Crown of Thorns to the space between death and life, the final reckoning of the Unbound Chronicles demands nothing less than everything.
Lilith's rebellion began with one word. It ends with an oath. Book 4 of the Lilith Unbound: Chronicles of Defiance series.