• roarings like thunder This is the sound of the "ground sea," which had also been heard some five weeks
    earlier, on the afternoon of 31 July (I:L4:5 and note). The breakup of the ice on
    that occasion cut Victor Frankenstein off from his Creature, and he remembered its
    violent sound (III:7:24 and note) in terms similar to those used here by Walton.