two berths each."

"Stay, let us make a plan. I will draw it. Here, now, is that right?"
and the Chief held up the rough diagram, here shown--

[Illustration: Diagram of railroad car.]

"Here we have the six compartments. Now take _a_, with berths 1, 2, 3,
and 4. Were they all occupied?"

"No; only two, by Englishmen. I know that they talked English, which I
understand a little. One was a soldier; the other, I think, a clergyman,
or priest."

"Good! we can verify that directly. Now, _b_, with berths 5 and 6. Who
was there?"

"One gentleman. I don't remember his name. But I shall know him by
appearance."

"Go on. In _c_, two berths, 7 and 8?"

"Also one gentleman. It was he who--I mean, that is where the crime
occurred."

"Ah, indeed, in 7 and 8? Very well. And the next, 9 and 10?"

"A lady. Our only lady. She came from Rome."

"One moment. Where did the rest come from? Did any embark on the road?"