B下大雨，大街上水很深。 很多车都过不去。ELGRAVIA is the story of a secret. A secret that unravels behind the porticoed doors of London’s grandest postcode. The story behind the secret will be revealed in weekly bite-sized instalments complete with twists and turns and cliff-hanger endings that will be delivered directly to your mobile, tablet or desktop via a brand new app. You can read it, or listen to it, or jump between the two. 　　Set in the 1840s when the upper echelons of society began to rub shoulders with the emerging industrial nouveau riche, Belgravia is peopled by a rich cast of characters. But the story begins on the eve of the Battle of Waterloo in 1815. At the Duchess of Richmond’s now legendary ball, one family’s life will change for ever . . .