"That is exactly what I want to ask you."
"Then we shall most certainly go. You and I and--yes, why, Dr. Watson is the very man. Your correspondent says two friends. He and I have worked together before."
"But would he come?" she asked, with something appealing in her voice and expression.
"I should be proud and happy," said I, fervently, "if I can be of any service."
"You are both very kind," she answered. "I have led a retired life, and have no friends whom I could appeal to. If I am here at six it will do, I suppose?"
"You must not be later," said Holmes. "There is one other point, however. Is this handwriting the same as that upon the pearl-box addresses?"
"I have them here," she answered, producing half a dozen pieces of paper.
"You are certainly a model client. You have the correct intuition. Let us see, now." He spread out the papers upon the table, and gave little darting glances from one to the other. "They are disguised hands, except the letter," he said, presently, "but there can be no question as to the authorship. See how the irrepressible Greek e will break out, and see the twirl of the final s. They are undoubtedly by the same person. I should not like to suggest false hopes, Miss Morstan, but is there any resemblance between this hand and that of your father?"
"Nothing could be more unlike."
"I expected to hear you say so. We shall look out for you, then, at six. Pray allow me to keep the papers. I may look into the matter before then. It is only half-past three. Au revoir, then."
"Au revoir," said our visitor, and, with a bright, kindly glance from one to the other of us, she replaced her pearl-box in her bosom and hurried away. Standing at the window, I watched her walking briskly down the street, until the gray turban and white feather were but a speck in the sombre crowd.
"What a very attractive woman!" I exclaimed, turning to my companion.
He had lit his pipe again, and was leaning back with drooping eyelids. "Is she?" he said, languidly. "I did not observe."
"You really are an automaton,--a calculating-machine!" I cried. "There is something positively inhuman in you at times."
He smiled gently. "It is of the first importance," he said, "not to allow your judgment to be biased by personal qualities. A client is to me a mere unit,--a factor in a problem. The emotional qualities are antagonistic to clear reasoning. I assure you that the most winning woman I ever knew was hanged for poisoning three little children for their insurance-money, and the most repellant man of my acquaintance is a philanthropist who has spent nearly a quarter of a million upon the London poor."