“The alternative—will be to return to the frontier under guard—immediately.”

“We’re not interested in the alternative,” John said. “Are we, Carvin?”

Of course I had to protest that we were not. I wasn’t, really, either, though I was beginning to wish we’d stop somewhere a little while.

“The Doctor Carlo’s most charming wife ’as prepared some food for you to eat upon the journey,” the Black Ghost went on. “That is so you need not stop on the way. There is no ’urry to ’ave you arrive there, but I do not wish you to stop with your passenger, ’e might jump out.”

“We haven’t enough petrol,” I said.

The Black Ghost turned to one of his men, and gave an order in Alarian. “Your tank will be filled immediately,” he said. “Anything else you wish?”

“We should like our passports back,” I suggested.

“Ah, your passports. Oh, yes, to be sure. I shall ’ave to send for them, but I promise you shall ’ave them back again.” He turned to the doctor and spoke again in Alarian. The doctor fumbled in his pocket and drew out a card with an official-looking stamp on it. The Black Ghost motioned him to give it to me.

“That,” he explained, “is a pass that will take you through any police lines. With it you will be able to reach the servants in the Royal Palace. No doubt you ’ave been provided with some means of gaining an interview with the Queen after that. Can you think of anything else you will require?”

“Nothing,” I said.