Beneath Ceaseless Skies - The Mansion of Bones by Richard Parks
Kenji began to chant. It might have been a passage from the Diamond Sutra; I was not pious enough to know one book of Buddhist scripture from another, but Kenji, despite his flaws, knew nearly all of them and could recite the appropriate passages at will. Which he was doing now. The shadow moved away from us toward the outbuilding as we stepped out onto the rear veranda, always keeping the structure to its back, or such I judged its back to be. It was hard to be certain with something so close to formless.