Since a long time, Sherlock Holmes, secretly hired by the President of the Whitechapel Vigilance Committee, has been investigating the case of the infamous Jack the Ripper. He confirmed that: ● Jack is a diminutive for Jacob, a Jewish name. ● Jack didn´t like to attack during spring and summer. ● Jack was under thirty, brown-eyed, and neither a doctor nor a surgeon. ● This killer didn´t work alone. At first, his gang was made up of street children. ● He was also supported by informers, journalists, a police officer and a member of the royal family. ● The first two letters were written by a reporter (Jack’s accomplice), while the third is of Jack’s own handwriting. Although Holmes knows who Jack is and identified the main members of his organization, in April 1891, he was confronting Professor Moriarty, and when he obtains the final proof that imputes Jack and presents it to his client, due to a confidentiality agreement, and that Jack was arrested, he couldn´t share this information with the authorities neither reveal the truth to the public. Several years later, other interests arise, so Sherlock Holmes is authorized to work with Scotland Yard and the secret service office, and close this case. In that sense, at the beginning of 1906, Holmes summons Watson to accompany him, hoping to interrogate Jack and put an end to this investigation. However, it seems that both the Whitechapel Vigilance Committee and Scotland Yard already knew who Jack was, but their goal was to make him disappear, without the citizens knowing his true identity... Content: First part, The long-awaited visit to Sherlock Holmes Second part, The recount of the brutal murders Third part, The search for the culprit Fourth part, Sherlock Holmes interrogates Jack the Ripper Fifth part, The final conclusion