In Specters of God, John D. Caputo returns to the original impulse of his work, the "mystical element" in things, here under the name of an "anxious apophatics," as distinct from an "edifying apophatics" anchored in unity with God. In dialogue with Schelling, a new turn for him and the lynchpin of this argument, Caputo addresses the nocturnal powers in being, the specters that haunt our being and bring us up short. The result is...