How does shelley combine two literary devices in this excerpt to develop the novel? she uses imagery to flesh out the setting and a subplot to contrast with the main plot. she uses symbolism to illustrate the idea of childhood and foreshadowing to hint at childhood's unhappy end. she uses flashback to drive character development and allegory to link the character with the theme. she uses flashback to drive character development and foreshadowing to hint at how the character will go bad.