Glasshouse Fold is in Denton, Greater Manchester. In 1910 two children were playing when the earth gave way beneath their feet and fell down a disused coalmine shaft. By quirk of fate they were saved by a steel plate that was blocking the 675 feet deep shaft. They clung on the plate all night unaware that a huge search was underway for them. Then in the morning they heard a noise and shouted. The hole they had made was so small that it had been missed during the search. The police came and a basket was lowered down on a rope and they were hoisted to the surface. The event made world news and the two children received presents from all over the globe.