The Stone Age, beneath the Sun Cave. Every dusk old Ung sings to the glowing Sun-Egg, and every dawn the Sun comes back. Tonight the Egg vanishes at sundown, the hearth goes out, and the tribe blames a tiger. Only Brogg, the weird one who looks at things too long, kneels to look for clues, with one night before the Sun is due. A deadpan prehistoric noir, where even detecting has yet to be invented.