They turned and entered the garden.

“Grand place this, sir,” said Parget, looking round him. “I’ve seen nothing like it in my life before. The King of this island seems a pretty active man—bit suspicious too.”

“You mustn’t mind that, Mr Parget.”

“I don’t,” said Mr Parget, “I’d sooner be suspected wrongly than rightly any day. I suppose, sir, you have very little difficulty in guessing why I am here.”

“None,” said Mr Lechworthy, “but I am wondering a little how it was that Scotland Yard came to send you.”

“Well, sir, to tell the truth, it was a bit of luck. You may have heard of Pentwin’s Popular Bank.”

“I’ve seen his advertisements; we’ve always refused them in my paper.”

“And quite right too; the thing was obvious. Well, this chap Pentwin seems to have realised that he’d come to the end of it, and he made his preparations for leaving. But he had to skip before the preparations were quite finished; in fact our men were into his house only twenty minutes after he’d left. A batch of letters came for Pentwin, and we took the liberty of opening and reading them. One was from a Mrs Wyse, widow of a man whom we wanted and never got. It seems he came out here and committed suicide here. Well, Mrs Wyse was a friend of Pentwin’s—a friend and perhaps a bit more. That letter was full of references to the Exiles’ Club, mentioned Sweetling’s name, told Pentwin how to make his application and send his subscription, and gave him his route to the island. There was another letter of introduction enclosed. If those letters had come one post earlier, there’s not a doubt that Pentwin would have been safe in Faloo by now, and Scotland Yard would have been none the wiser.”

They had reached the house, and Lechworthy pushed forward a deck-chair. “Sit down, won’t you?” he said.

“Not sorry to,” said Parget. “I’ve been on my feet for three hours, waiting for the chance to have a word with you. Well, as I was saying, it was thought worth while to look into this Exiles’ Club, if only on Sweetling’s account. We’ve wanted Sweetling for years and wanted him badly. He was the Hazeley Cement swindle, as you may remember, and the Tarlton Building Company, and a lot more.”