以英文写一个简短的故事，在故事末尾留下悬念。
Emma was a detective tasked with solving a high-profile murder case. She had been investigating for weeks with no leads until she received an anonymous tip. The tip led her to a secluded cabin in the woods where she found a clue that could break the case open. But as Emma turned to leave, she heard a noise coming from the cabin's basement. She cautiously made her way down the stairs but before she could see what was there, someone hit her on the head and everything went black.