How is the famous June morning in 1215, when the fateful charter was signed, envisioned by the narrator ? (Chapter- 11)

That morning, the men arrive at Magna Charta Island, near Runnymede. As the name suggests, Magna Charta Island is where King John signed the Magna Carta in 1215. J. speculates at length about what it would have been like to be a peasant living in Runnymede at the time of the event.

Far down the road a little cloud of dust has risen, and draws nearer and grows larger, and the pattering of many hoofs grows louder, and in and out between the scattered groups of drawn-up men, there pushes on its way a brilliant cavalcade of gay-dressed lords and knights. And front and rear, and either flank, there ride the yeomen of the Barons, and in the midst King John.