Allan's sunburnt cheek and bright dark eye, rapidly measures his height and build, and seems to approve of him.
"Since you have been out, sir, I have been thinking that I unquestionably know the rooms in Lincoln's Inn Fields, where Bucket took the lad, according to his account. Though he is not acquainted with the name, I can help you to it. It's Tulkinghorn. That's what it is."
Allan looks at him inquiringly, repeating the name.
"Tulkinghorn. That's the name, sir. I know the man, and know him to have been in communication with Bucket before, respecting a deceased person who had given him offence. I know the man, sir. To my sorrow."
Allan naturally asks what kind of man he is.