In which novel does the character Mr. Tulkinghorn appear?

Mr. Tulkinghorn appears in Charles Dickens's novel Bleak House. He is the lawyer employed by Sir Leicester Dedlock and becomes one of the novel's most watchful and dangerous figures.

Tulkinghorn investigates the secret past of Lady Dedlock after noticing her reaction to a handwritten document. His professional role gives him access to private information, and he uses that knowledge to pressure people while claiming to protect his client's reputation. Through his investigation, he connects Lady Dedlock with Nemo, a dead law-copyist, and with Esther Summerson.

Bleak House was first published as a 20-part serial from 1852 to 1853. Its central plot revolves around Jarndyce and Jarndyce, a seemingly endless Court of Chancery case involving conflicting wills. Dickens uses Tulkinghorn's investigation to add a detective-story structure to the novel's legal, social, and family drama.

Readers sometimes confuse him with Mr. Kenge, another lawyer in the novel, or with lawyers from Dickens's other books. Tulkinghorn is specifically the reserved solicitor serving the Dedlock family.