“No. You go as Herbert Hebberdine, son of old Sir Samuel Hebberdine, the banker of Old Broad Street, a young man sowing his wild oats and a motor enthusiast, as every young man is more or less nowadays,” he laughed. “You go as owner of the car. To Mrs Blair-Stewart I explained long ago that you were one of my greatest friends, so she has asked me to invite you, and I’ve already accepted in your name.”

“But I’m a stranger!” protested Garrett.

“Never mind, my dear fellow,” laughed the audacious Prince. “Clayton will be up there too. It’s he who knows the people, and is working the game pretty cleverly.”

“Is it jewels?” asked the chauffeur in a low voice.

“No, it just isn’t, this time! You’re mistaken, as you always are when you’re too inquisitive. Garrett, it’s something better,” he answered. “All you’ve got to do is to pretend to be smitten by the girl. She’s a terrible little flirt, so you won’t have very much difficulty. You make the running, and leave all the rest to me.” His master, having shown him on the map where Glenblair was situated, half way between Stirling and Perth, added:

“I’ll go up to-night, and you’ll be there in three days’ time. Meanwhile I’ll sing your praises, and you’ll receive a warm welcome from everybody when you arrive. Take your decent kit with you, and act the gentleman. There’s a level thousand each for us if we bring it off properly. But,” he added, with further injunctions not to fall genuinely in love with the pretty Elfrida, “the whole thing rests upon you. The girl must be devoted to you—otherwise we can’t work the trick.”

“What is the trick?” asked Garrett, his curiosity aroused.

“Never mind what it is, Garrett,” he said, rising to dismiss him.

“Have your lunch and get away. You’ve five hundred miles of bad roads and new metal before you, so the sooner you’re off the better. Call and see Clayton at his rooms. He’s got a bag, or something, to put in the car, I think. When we meet in Scotland, recollect that I’m Prince Albert incognito. We were at Bonn together, and have been friends for many years. Good luck to you!”

And with that he left the Prince’s cosy rooms, and soon found himself out in Dover Street again, much puzzled.