Read the following passage:
The novel "Silent Echoes" explores the complex relationship between two sisters, Clara and Elena, who have grown apart over the years. As children, they shared everything — secrets, dreams, and adventures. However, as they entered adulthood, various life choices and personal struggles began to create a distance between them.
Clara pursued a career in medicine, often prioritizing her work over personal connections. She found fulfillment in her responsibilities but started to feel isolated. On the other hand, Elena chose to travel the world, seeking freedom and new experiences, yet she often struggled with her sense of unrootedness. The narrative alternates perspectives between the sisters, revealing each one's thoughts and feelings regarding the other.
In a crucial moment in the story, Clara receives a phone call from Elena while she is in the middle of a life-and-death situation at the hospital. This call forces Clara to confront her priorities and her relationship with her sister.