Read the following passage, then choose the answer that most strongly supports the author's purpose of the passage.
Enigma of Elmwood Creek
Detective Zara Patel reexamined the evidence spread across her desk, her brow furrowed in concentration. The case of the missing Elmwood Creek hero had baffled the town for weeks. Eyewitnesses recounted a mysterious figure who had rescued a young boy from the swollen creek during a violent storm, only to disappear without a trace.
As Zara sifted through the reports, she noticed an unusual pattern emerging. Each account mentioned a faint, eerie glow emanating from the rescuer. Intrigued, she decided to revisit the creek, hoping to uncover any overlooked clues. The detective's instincts told her that the key to solving this enigma lay hidden in the murky waters.
Upon reaching the creek, Zara noticed something unusual. A series of strange symbols were etched into a nearby rock, previously obscured by floodwater. As she examined them closely, the symbols began to effervesce, emitting a soft, otherworldly light. Suddenly, Zara felt an inexplicable pull towards the water. She resisted at first, but then surrendered to the force, stepping into the creek. To her astonishment, she found herself transported to an ethereal realm, where the truth behind Elmwood Creek's elusive hero awaited her. Zara realized that her courage in pursuing this mystery had led her to an extraordinary discovery, one that would redefine her understanding of heroism forever.