Sunday evening, October 9th, 1216. King John is facing continued civil war and a devastating French invasion; treacherous times. We discover him crossing the tidal marshes of the Fenlands of East Anglia. He is about to lose England's crown jewels, his gem collection, and sackfulls of silver coins with his image on them: a treasure trove.What happened? What was he doing in that remote and windswept place? Why did he take the crown jewels with him?...