Every time I ascended to the deck from my watches below, I instantly gazed aft to mark if any strange face were visible ; for my first vague disquietude touching the unknown captain, now in the seclusion of the sea, became almost a perturbation.
1851 November 14, Herman Melville, chapter 28, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, page 134