2570 BCE, Bagasra Village, Harappa, India Twelve-year-old Avani is a happy-go-lucky, adventurous Harappan girl, who loves to play with her friends Tavishi, Delshad and Ambar. The wedding of the Village Elder's daughter Ketika brings fresh excitement into their lives. However, something sinister is afoot, as Avani realizes when she overhears a mysterious conversation between two men. Other incidents, like a bizarre robbery and a fire at the grain storeroom, add to the tension. Do these unconnected events point to a bigger plan? How is the monk from far-off China linked to all this? Will Avani and her friends quick thinking unmask this plan, and save the honour of Bagasra village and Harappa?