On the morning the river ran backwards, no one thought to write it down. Everyone was too busy watching. Boats drifted upstream without oars. Fallen branches climbed towards the mountains. Ducks paddled frantically in circles, offended by the change in arrangements. Only Mara, the town’s violin teacher, seemed unsurprised. She stood on the bridge with her instrument case beneath one arm and listened. “What are you doing?” the mayor asked. “Trying to hear where it begins.” “Where what begins?” She pointed towards the river. “That.” For years, Mara had insisted the valley possessed a natural rhythm. Water, wind, church bells, even the train crossing the western bridge all sounded in patterns. Her students tolerated the theory because she made excellent biscuits. But that morning, something was wrong. A note was missing. Not metaphorically. Mara could hear the melody formed by the rushing water, except each phrase contained a tiny silence where something should have been. She gathered the town orchestra. They played beside the river for three days. Trumpets frightened the sheep. Cellos attracted curious fishermen. The percussionist nearly lost a cymbal downstream—or upstream, depending on how one looked at it. Nothing changed. Then Mara’s youngest student, Leo, raised his violin. “What if we don't play the missing note?” “We already aren't,” someone said. “No. What if the silence is the note?” They tried again. This time, whenever the gap arrived, every musician stopped. The river shuddered. Then slowly, impossibly, it turned. Water resumed its journey towards the sea. The townspeople cheered. Mara did not. She simply smiled at Leo. For centuries, musicians had treated silence as the absence of music. Perhaps they had been listening incorrectly. The orchestra finally agreed the missing note had been there all along.