The Cost of Knowing

What happens when science looks backward and belief looks nowhere at all?

Some questions start innocently. Then they don’t.

Haunted by the brutal death of his childhood friend and numbed by a world that no longer persuades him, Father David Callaghan steps away from parish life and leaves a quiet Irish town for the vastness of the Kalahari Desert. Drawn by a scientific discovery among the San people—the most ancient living culture on Earth—he joins an anthropological expedition in the hope that looking backward might explain what has gone wrong in the human story.

In the desert, science speaks in data and fossils; belief, in silence and doubt. As the team fractures under philosophical tensions, ambition, and desire, a murder and a sudden disappearance unravel the expedition’s fragile order. Hunted by poachers and lost in the wilderness alongside a young anthropologist and a San boy, David is forced to confront questions no discipline can fully answer: whether meaning can survive knowledge, whether love can coexist with vocation, and what a life is worth when certainty fails.

The Cost of Knowing is a lyrical novel in which anthropology collides with metaphysics, reason with longing, and modern certainty with ancient wisdom—a meditation on what remains of humanity when its oldest stories are stripped bare.