The place did not look particularly inviting, but Bob did not hesitate. He tied the mule to a post, walked to the dwelling, and knocked on the door.

"What's wanted?" asked a negro who appeared.

"I want to see the doctor."

"Front room upstairs," and the negro disappeared in the direction of the rear.

Bob entered the narrow and dirty hallway and ascended the rickety stairs. There were two rooms in the front, on the door of one of which was the sign: Doctor's Office—Walk In.

Bob entered, closing the door after him. A voice from another apartment called out to him:

"Who is there?"

"I came to see the doctor."

"Oh, all right. Sit down, I'll be with you in a few minutes. I am just mixing some medicine I can't leave."

Bob sat down, on the side of the room next to a thin partition which divided that apartment from the other room at the front of the hallway. He could hear a murmur of voices in the next room and presently caught a few words.