Ilse, Eli's wife, first appears in Book 1 of the series as a skilled surgeon compelled to serve in a field hospital during World War I. However, as her journey unfolds, particularly after marrying Eli, Ilse undergoes a notable shift in focus. She chooses to set aside her involvement with patients and redirects her passion toward the art of baking. This evolution adds depth to her character, revealing the multifaceted nature of Ilse's experiences and choices throughout the series.