He stood looking after them… as though he had perceived that they had come back accompanied by a ghost a-piece. – Charles Dickens, Little Dorrit

The weathercocks on spires and housetops were mysterious with hints of stormy wind, and pointed, like so many ghostly fingers, out to dangerous seas, where fragments of great wrecks were drifting, perhaps, and helpless men were rocked upon them into a sleep as deep as the unfathomable waters. – Charles Dickens, Dealings with the Firm of Dombey and Son

An idea, like a ghost (according to the common notion of ghosts), must be spoken to a little before it will explain itself. – Attributed to Dickens in Many Thoughts of Many Minds by Henry Southgate, 1862