"What did you want of me?" asked Dave, as they walked on in the direction of Oakdale.
"I wished to see you on an important business matter."
"Business? What business?"
"I will come to that presently, Porter. But it is important, very important, I can assure you. I was going to ask you to call at a certain place in Rockville and see me about it."
"What place?"
"A boarding-house at which I am stopping. It is a very nice place, located on the river, and kept by a lady named Dunn—Mrs. Margaret Dunn."
At once Dave remembered the letter picked up on Bush Island—the letter written by Doctor Montgomery, and asking Jasniff to meet him at Dunn's on the river. In that communication the doctor had said he would aid Jasniff all he could, provided the Rockville student would assist him in some transaction involving little risk—which would mean that there must be something "shady" about it.
"Can't you explain the business to me without my going to Rockville?" he asked.
"I cannot. I have some things at the boarding-house—some letters and documents—I wish to show you. Day after to-morrow is Saturday. Can't you come to Rockville in the afternoon and see me? I can assure you, sir, it is very important,
