"Why will you persist in saying you didn't do it?"
"I can prove it."
"Let's see you prove it."
"You carry the mail to Riverport and back."
"I know it; but I don't have any key to the bag."
"You know where the key is," said he, earnestly. "This morning I had a letter from Miss Larrabee's brother, saying that he sent his sister forty dollars, which must have come on before she left."
"That don't prove that I took it," I interposed; for I wished to know what the trap was before I said anything about Ham.
"It proves that the letter came. I've been down to Riverport this forenoon, and seen the postmaster there. He says the name was an odd one to him, and he distinctly remembers seeing it when he sorted the mail. I haven't any doubt the letter came to this office."
"Nor I either," I replied, glancing at Ham, who had taken position by his father's side to hear what was said.