DUN, SCOTLAND—Teenaged students have assisted with the excavation of what could be a fourteenth-century castle in eastern Scotland, according to a report in the Brechin Advertiser. The volunteers were helping The National Trust for Scotland repair a mausoleum at the historic eighteenth-century estate known as the House of Dun when they uncovered the foundations of a medieval chapel and the nearby castle. The mausoleum is thought to have originally been part of the fourteenth-century chapel. Researchers believe the castle was built in the defensive form of a tower house that was surrounded by a curtain wall and other buildings. Damaged during the Civil War of 1644, the castle was eventually replaced with the Georgian house that now stands on the property. “This discovery of the site of the Castle of Dun is one more piece in the jigsaw that is the House of Dun estate,” said archaeologist Daniel Rhodes. To read about excavations at another castle in Britain, go to "Letter From England: Stronghold of the Kings in the North."