You've heard the stories of the City in SIlver. We all have. The legends, the curses...

From Fallen London Wiki

Some foolishness about it lying in the middle of a Hinterland of a cavern. A hinterland of hills, beneath a living stalactite. A bright, shining monument, reaching out, drawing workers to their doom. An illusion. A promise that you can change your fortunes, forget, begin again. Finding it, though, that's not the hard part. It's letting go.