Holmes is a private detective, with his great friend Watson it has to investigate a case of the Duke de Holdernesse. The Dr Huxtable, the director and founder of the school Priory, which send to everything the children of important persons. It manages to ask for Holmes's help because the son of the Duke ah missing. Then the Dr Huxtable says to Holmes and Watson if they it can accompany Macketon, in the north of England to investigate on the case but Holmes refuses since it have two important cases that of Ferrers and that of Abergavenny. But when the Dr Huxtable says to him that the Duke this one ready to give 5 thousand pounds for the one that could indicate him the whereabouts of his son and other thousand should indicate him who or those who were the persons who had kidnapped it. Holmes at the time and Watson agree to be going to Mackleton to investigate the case, When they come to already found with the Duke and with his secretary James Wilder, to quines start interrogating them on his son, the Dr Huxtable also mentions that the German’s teacher Heidegger who was going working with them already two years also had missing person taking his bicycle to him. Holmes at the time with Watson begins to investigate and the first thing that he finds they are the trodden ones of Heidegger that was going working with them already two years also had missing person taking his bicycle to him. Holmes at the time with Watson begins to investigate and the first thing that he finds they are the trodden ones of Heidegger and then the brands of the wheels of the bicycles, when they start following the brands of the bicycles with a map that tape-worm Holmes they realize that just beyond of a river there is one yellows flowers with coagulated blood and find a man that this without socks but with shoes and with a coat but without shirt and this way had gone out the German's teacher of the college. This way they start finding the tracks, Holmes him clarifies to Watson that the boy had gone by his own will. After found the fingerprints of the bicycles of the boy that directed to Holdernesse's mansion but they were lifting to several miles to the left of the mansion was an inn where, his name was "Fighting cock", Holmes the owner of the business sees the gentleman Hayes and asks him if tape-worm a car or something because had doubled the ankle, the gentleman Hayes asks him to where directed and it answers him that it was taking news to the Duke of his son that had missing person. This Holmes surprised, because it had never seen anybody who was obvious him so much since was lying. Afterwards when directed to Holdernesse’s mansion someone goes on in a bicycle very seemed to the secretary of the Duke, for what they go to investigate again to put "Fighting cock". Finally they come to the mansion of the duke and tell him everything what had happened remains really amazed with what he says to him, since Holmes with Watson says to him that and his secretary they were the persons in charge of all that. Holmes asks him for the check of six thousand pounds of the case but the Duke says to him that will duplicated the value if he was not speaking but Holmes said that not podia him nobody lied to, but that alone it wise and his friend Watson, in this instant the duke starts them reporting That had lover of a wonderful woman of these times that one falls in love once in his life but that a son did not want to marry, lamentably she died, her had had the son I turn out to be James Wilder the secretary of the Duke, since not podia to recognize before all or but it would damage the reputation as not had married. James Wilder was the fact that "I" "kidnap" Arthur the son also of the Duke but with his wife the Countess Edith. The Duke you eat I begin or sending elsewhere to Woman's faces because not only was the face of his dear one, but also all his wonderful qualities. Woman's faces hand kidnap Arthur because saw that was the inheritor of the things of the Duke then tape-worm threatened with that him hand to the child but if it was altering or changing the system of inheritance(heredity). The fact that I help to Woman's faces it was Hayes the owner of the "Fighting cock", but already he was brave beSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's sonSherlock Holmes and the duke's soncause Holmes had manager of it when I flee. Ultimately Holmes with Watson not directed nothing on the son of the Duke, Woman's faces, since Holmes said to the Duke who should call his lackey in order that it was taking the news, where his son was. James Wilder on the other hand would to Australia because if it was remaining in the mansion alone it would bring misfortunes.