Although he was not able to speak English fluently until his mid-twenties, this Polish-British writer is often considered one of the great masters of the English language. He helped popularize the concept of an anti-hero, frequently featured nautical settings, and wrote both 'The Secret Agent,' 'The Secret Sharer,' and 'The Heart of Darkness.' Who is this author?

Fact: The original title of Fahrenheit 451 was The Fireman.