"Give it up; let's have it."
"Because it makes Chi-ca-go."
"What's that to do with the crow?" Fred asked.
"Why, everything," Frank answered; "the crow makes ye-caw-go, doesn't it?"
"Now, Frank," the Doctor said, as he laughed over the conundrum, "making puns when we're a thousand miles from home and going west! However, that will do for a beginner; but don't try too often."
Fred thought he must say something, but was undecided for a moment. The room was open, and as he looked into the hall, he saw the chambermaid approaching the opposite door with the evident intention of looking through the keyhole. This gave him his opportunity, and he proposed his question.
"Why are we like that chambermaid over there?"
"The Doctor and Frank couldn't tell, and Fred answered, triumphantly,
"Because we're going to Pek-in."
"I think you boys are about even now," said the Doctor, "and may stop for the present." They agreed to call it quits, and resumed their study of the map.