Ah! but am I? the young man exclaimed fiercely. "That's what I want to know. Look here! I've been through every letter and every scrap of paper I can find, I've been to the bank and to his few pals, and strike me dead if I can find where that five hundred pounds came from every three months! It was in gold always; he must have gone and changed it somewhere--five hundred golden sovereigns every three months, and I can't find where they came from!"