“All the stuff your father got together? Surely not! Well, that’s the limit!”

“Quite,” confirmed Cecil. “I’d prevent it if I could; but he’s got the whip-hand, and that’s all there is to it.”

Foxy seemed still slightly incredulous.

“Why, your Governor loved that stuff as it were a child! And Maurice doesn’t need the money he’ll get for it. It’s . . . it’s shameful! My word! If I were in your shoes, Cecil, I believe I’d really steal the stuff instead of only pretending to grab it.”

“I’m sorely tempted,” said Cecil, half-grimly. “Now here’s the point. It seems Maurice has got into touch with Kessock, the Yank millionaire. Kessock wants to buy the Medusa Medallions—the very thing my father set most store by in the whole lot. Kessock’s sent over an agent of his—this fellow Foss who’s staying here just now—to settle up the business, see to the genuineness of the things, and so forth. I’ve nothing against Foss. He’s only doing his job and he seems all right. I don’t like some of his American manners; but that’s neither here nor there. The point is, the deal’s just going to be closed. Now if we lift these medallions, won’t Maurice look an extra-sized ass?”

“Absoluto!” said Foxy. “I see what you’re after. We lift ’em. Foss wants ’em at once. He can’t get ’em. P’raps the deal’s off—for the time at least. And Maurice looks a prize ape.”

“Yes,” Cecil snapped, angrily. “That’ll perhaps teach him a lesson.”

Una Rainhill had been thinking while this last part of the conversation had been going on.

“There’s one thing you haven’t provided against, Foxy,” she pointed out. “Suppose you manage everything as you’ve arranged. Even if you get clear away from the museum, there’s almost certain to be some one in the passage outside who’ll see you rush out. And then the game would be up. It’s not enough to dowse the light in the museum. You’ll need to put all the house lights out as well.”

“That’s sound,” Foxy agreed at once. “That means that you’ll need to pull out the main switch instead of just the fuse of the museum. It’s an even easier job, with no chance of a mistake in it. And what a spree it’ll be. The whole shop will be buzzing like an overturned hive! It’ll be great sport. And, of course, there’ll be such a wild confusion before they get the lights on again, that we’ll come out of it absolutely O.K. All we have to do is to saunter quietly out of the museum and help to restore order among the rabble in the dark. By the time the lights go on again, we’ll be anywhere it suits us to be. That’s a master-stroke of yours, Una. Couldn’t be bettered.”