Hospitalfield House in the fishing town of Arbroath on Scotland's east coast is a Victorian treasure trove.The couple who owned this great house back in the 19th century were obsessed with the decorative arts, and Hospitalfield is full of ornate carved ceilings, sculpted fireplaces, exquisite plasterwork and stonework carved by master masons. It's still a place where artists work today and it has a fine picture collection.Among the many Victorian paintings, could a mysterious 16th century portrait by one of the great Old Master artists lie waiting to be discovered?