Modern editions use a later revised version printed in 1817 and featuring a gloss. Along with other poems in Lyrical Ballads, it was a signal shift to modern poetry and the beginning of British Romantic literature.It relates the events experienced by a mariner who has returned from a long sea voyage. The Mariner stops a man on his way to a wedding ceremony and begins to narrate a story. The Wedding-Guest's reaction turns from bemusement to impatience, fear, and fascination as the Mariner's story progresses, as can be seen in the language style: for example, the use of narrative techniques such as personification and repetition to create a sense of danger, or the supernatural, or serenity, depending on the mood each different part of the poem.

    In Prague, working as a translator, she has found a home of sorts—or, at least, refuge. That changes when her friend Karel discovers a mysterious letter in the library, a strange confession and a curious warning that speaks of Melmoth the Witness, a dark legend found in obscure fairy tales and antique village lore. As such superstition has it, Melmoth travels through the ages, dooming those she persuades to join her to a damnation of timeless, itinerant solitude. To Helen it all seems the stuff of unenlightened fantasy.But, unaware, as she wanders the cobblestone streets Helen is being watched. And then Karel disappears. . . .