4pm and on. A flock of crows screeching by, on their way to the river and the trees close to its shores. Watching the change of colours with the fading sun. At this hour, even the concrete across the office backyard sometimes has a warm feel to it. Far below, people are heading home, heading everywhere and nowhere. A couple of office workers still sitting on benches near the pond, clinging to mugs and notebooks. For a brief moment this day doesn't feel like late autumn at all.