用初中生水平的英语水平写书书虫牛津英汉双语读升级版当中《大侦探雪莉霍梅斯》这篇故事的剧情概括篇幅稍微短一点。要用英语。

The story "The Great Detective Shirley Holmes" from the upgraded version of Bookworm Oxford English-Chinese Bilingual Reading can be summarized as follows:

Shirley Holmes, a young detective, receives a mysterious letter requesting her help to solve a case. She visits the address mentioned in the letter, which turns out to be an old mansion. Upon entering, Shirley encounters a ghostly figure and hears strange noises. Undeterred, she continues her investigation.

Shirley finds clues that lead her to suspect the mansion's caretaker, Mr. Smith. She confronts him, but he denies any involvement. Determined to uncover the truth, Shirley decides to spend the night in the mansion to catch the culprit.

During the night, Shirley witnesses more peculiar events, including a hidden passage and a secret room. Eventually, she discovers that the ghostly figure is a trick created by Mr. Smith to frighten people away from the mansion.

Confronting Mr. Smith once again, Shirley reveals her findings and accuses him of trying to scare people away so he can search for hidden treasure. Mr. Smith confesses and is apprehended by the authorities.

With the case solved, Shirley receives praise for her brilliant detective skills. She continues her adventures, always ready to solve the next mystery that comes her way.

Note: This summary is written at a middle school level of English proficiency