I call it an explosion, because that was what it seemed like when it broke loose. One moment a dreamy hush was all over the place, broken only by old Heppenstall talking about our duty to our neighbours; and then, suddenly, a sort of piercing, shrieking squeal that got you right between the eyes and ran all the way down your spine and out at the soles of the feet.

“ Ee -ee-ee-ee-ee! Oo-ee! Ee-ee-ee-ee!”

It sounded like about six hundred pigs having their tails twisted simultaneously, but it was simply the kid Harold, who appeared to be having some species of fit. He was jumping up and down and slapping at the back of his neck. And about every other second he would take a deep breath and give out another of the squeals.