Course Hero. "Sophie's World Study Guide." Course Hero. 25 Oct. 2017. Web. 21 Oct. 2018. <https://www.coursehero.com/lit/Sophies-World/>.
Course Hero. (2017, October 25). Sophie's World Study Guide. In Course Hero. Retrieved October 21, 2018, from https://www.coursehero.com/lit/Sophies-World/
(Course Hero, 2017)
Course Hero. "Sophie's World Study Guide." October 25, 2017. Accessed October 21, 2018. https://www.coursehero.com/lit/Sophies-World/.
Course Hero, "Sophie's World Study Guide," October 25, 2017, accessed October 21, 2018, https://www.coursehero.com/lit/Sophies-World/.
Sophie does not hear from Alberto for several days, and when Joanna invites her camping, she agrees. They set up camp near the Major's Cabin and pay it another visit. The cabin is deserted except for the mirror and a box of postcards addressed to Hilde, c/o Alberto. The girls begin to read the postcards. The last postcard mentions both Sophie and Joanna, which freaks them out. Sophie decides to take the mirror home with her.
In his postcards to Hilde, Albert mentions how excited he is about Hilde's 15th birthday present and how he wants to share it with the world. He also explicitly names Sophie and tells Hilde the two of them will meet one day. The birthday present is, of course, Sophie's World, and Hilde has been reading along since the beginning, meaning she has already met Sophie, though Sophie does not yet know this. However, Albert writes he "expects" Sophie "will soon begin to catch on." As the author of Hilde's birthday present, Albert is using the metafictional technique of declaring his intentions to his own invented character. The power lies with him to allow Sophie to catch on, and because she is his creation, he "expects" she will do what he has her do in his writing.