What did Oliver Twist do in london?

In the novel "Oliver Twist" by Charles Dickens, Oliver is first taken to London by a group of thieves led by the cunning Fagin. He is forced to participate in petty thefts and pickpocketing as part of Fagin's gang, and he is often mistreated by his fellow thieves.

Oliver eventually escapes from Fagin's gang and finds refuge with Mr. Brownlow, a kind-hearted elderly man. However, he is pursued by Fagin and his associates, who kidnap him and take him back to their den. Oliver is rescued once more by the intervention of Mr. Brownlow and the authorities.

As the story unfolds, it is revealed that Oliver is the long-lost heir to a wealthy estate, and he is finally reunited with his grandfather, Mr. Leeford, who had been searching for him all along. Oliver is able to escape the hardships and dangers of London and start a new life with his newfound family and fortune.