Fairy tales function both as a motif and a plot device in the novel. Eliza’s published book is packed in Ivory’s white suitcase. When Nell receives the case after Hugh’s death, the physical book provides a clue to the identity of her family. The tales were written by her mother and the illustrations drawn by her father. Nell is led to Cliff Cottage because she’s begun searching for the author of the volume.

In addition to the book’s function as a map leading Nell to Cliff Cottage, specific stories within the book offer a commentary on events in the characters’ lives. “The Crone’s Eyes” parallels Cassandra’s quest to restore Nell’s vision because she has lost sight of her past. “The Changeling” was written as a birthday gift for Rose and is a veiled commentary on Adeline’s overprotectiveness toward her daughter: She wishes to keep Rose caged as an invalid, never to lead a normal life.

“The Golden Egg” expresses Eliza’s grief over parting with her daughter. Even though Rose will lead a happy life because of Ivory’ presence, Eliza’s life is diminished by the child’s absence. The “Cuckoo’s Flight” isn’t quoted fully in the novel, but its conclusion is described by Christian and paraphrased by Eliza just as she throws herself from a moving carriage to reunite with her daughter.