The Shadow-Line is a short novel based at sea by Joseph Conrad; it is one of his later works, being written from February to December 1915. The novella depicts the development of a young man upon taking a captaincy in the Orient, with the shadow line of the title representing the threshold of this development. The novella is notable for its dual narrative structure. The full, subtitled title of the novel is The Shadow-Line, A Confession, which immediately alerts the reader to the retrospective nature of the novella. The ironic constructions following from the conflict between the 'young' protagonist (who is never named) and the 'old' drive much of the underlying points of the novella, namely the nature of wisdom, experience and maturity. Conrad also extensively uses irony by comparison in the work, with characters such as Captain Giles and the ship's 'factotum' Ransome used to emphasise strengths and weaknesses of the protagonist.