An inexplicable and even supernatural moment in the book that proves a turning point, snapping Jane out of her acquiescence to a situation she manifestly doesn’t want. The hill-sent echo is like a calling.
She duly responds.
‘”Where are you?” seemed spoken among mountains; for I heard a hill-sent echo repeat the words.’
Source: Charlotte Bronte, Jane Eyre (London: Bounty Books, 2012 (1847)), p. 588