They had travelled the Continent together for years, roaming wherever their interests and their acquaintance had directed them, exploring museums and opera houses and ruined castles. They wrote poetry and concertos and painted murals on the walls of ancient abbeys. They had been the staunchest companions until Lysander, having left his thirtieth birthday some years past, had spotted Violante sitting serenely in her uncle’s box at La Fenice. It was, as the Tuscans say, un colpo di fulmine, a bolt of lightning.