"You lay out three and sixpence, sir," said Timothy, almost instantaneously; he was sharp at most things, but especially sharp at figures; "and you get back five and sevenpence. Two and a penny profit."
"Quite right. Anything else?"
"The three books you sell for waste-paper will bring in something; perhaps they're big ones."
"Perhaps they're little ones. We won't reckon them. Anything else?"
"You bought twenty-eight books, sir; you only gave me twenty-seven to figure out. One short, sir."
"That was stolen, Timothy."
"Where from, sir?"
"From the stall outside."
"It couldn't have been, sir, if you had a sharp boy to attend to it for you."
"Ah! The question is, where to find that particularly sharp boy?"