He caught his breath at the strange transformation of the place since his last view of it more than three hours before. He learnt later that this dance was held always as the Grand Finale of the Three Days' Annual Fair, and on the last of the days there is an old custom that, from four-thirty to six-thirty no trading shall be done, but that every one shall entertain or be entertained within their homes. This pause had its origin, I should fancy, in some kind of religious ceremony, to ask the good God's blessing on the trading of the three days, but it had become by now a most convenient interval for the purpose of drinking healths, so that when, at seven o'clock, all the citizens of the town poured out of their doors once again, they were truly and happily primed for the fun of the evening. Harkness found, therefore, what at first seemed to be naked pandemonium and, stepping into it, crossed into the third room of his house of delivery. The old buildings--the town hall, the church, the old grey tower--were lit up as though by some supernatural splendour, all the lights of the booths, the hanging clusters of fairy lamps, and, in the very middle of the place, a huge bonfire flinging arms of flame to heaven. In one corner there was the merry-go-round. A twisting, heaving, gesticulating monster screaming out "Coal Black Mammy of Mine," and suddenly whooping with its own excitement, showing so much emotion that it would not have been surprising to find it, at any moment, leap its bearings and come hurtling down into the middle of the crowd. The booths were thick with buyers and sellers, and every one, to Harkness's excited fancy, seemed to be screaming at the highest pitch of his or her strident voice.