"Well, it was like this," said the little priest, speaking in the same unaffected way. "I went back to that sweet-shop and asked if I'd left a parcel, and gave them a particular address if it turned up. Well, I knew I hadn't; but when I went away again Idid. So, instead of running after me with that valuable parcel, they have sent it flying to a friend of mine in Westminster."Then he added rather sadly: "I learnt that, too, from a poor fellow in Hartlepool. He used to do it with handbags he stole at railway stations, but he's in a monastery now. Oh, one gets to know, you know," he added, rubbing his head again with the same sort of desperate apology. "We can't help being priests. People come and tell us these things."Flambeau tore a brown-paper parcel out of his inner pocket and rent it in pieces. There was nothing but paper and sticks of lead inside it. He sprang to his feet with a gigantic gesture, and cried:

"I don't believe you. I don't believe a bumpkin like you could manage all that. I believe you've still got the stuff on you, and if you don't give it up--why, we're all alone, and I'll take it by force!""No," said Father Brown simply, and stood up also, "you won't take it by force. First, because I really haven't still got it.

And, second, because we are not alone."

Flambeau stopped in his stride forward.

"Behind that tree," said Father Brown, pointing, "are two strong policemen and the greatest detective alive. How did they come here, do you ask? Why, I brought them, of course! How did Ido it? Why, I'll tell you if you like! Lord bless you, we have to know twenty such things when we work among the criminal classes!

Well, I wasn't sure you were a thief, and it would never do to make a scandal against one of our own clergy. So I just tested you to see if anything would make you show yourself. A man generally makes a small scene if he finds salt in his coffee; if he doesn't, he has some reason for keeping quiet. I changed the salt and sugar, and you kept quiet. A man generally objects if his bill is three times too big. If he pays it, he has some motive for passing unnoticed. I altered your bill, and you paid it."The world seemed waiting for Flambeau to leap like a tiger.

But he was held back as by a spell; he was stunned with the utmost curiosity.

"Well," went on Father Brown, with lumbering lucidity, "as you wouldn't leave any tracks for the police, of course somebody had to. At every place we went to, I took care to do something that would get us talked about for the rest of the day. I didn't do much harm--a splashed wall, spilt apples, a broken window; but Isaved the cross, as the cross will always be saved. It is at Westminster by now. I rather wonder you didn't stop it with the Donkey's Whistle.""With the what?" asked Flambeau.

"I'm glad you've never heard of it," said the priest, making a face. "It's a foul thing. I'm sure you're too good a man for a Whistler. I couldn't have countered it even with the Spots myself;I'm not strong enough in the legs."

"What on earth are you talking about?" asked the other.

"Well, I did think you'd know the Spots," said Father Brown, agreeably surprised. "Oh, you can't have gone so very wrong yet!""How in blazes do you know all these horrors?" cried Flambeau.

The shadow of a smile crossed the round, simple face of his clerical opponent.

"Oh, by being a celibate simpleton, I suppose," he said. "Has it never struck you that a man who does next to nothing but hear men's real sins is not likely to be wholly unaware of human evil?

But, as a matter of fact, another part of my trade, too, made me sure you weren't a priest.""What?" asked the thief, almost gaping.

"You attacked reason," said Father Brown. "It's bad theology."And even as he turned away to collect his property, the three policemen came out from under the twilight trees. Flambeau was an artist and a sportsman. He stepped back and swept Valentin a great bow.

"Do not bow to me, mon ami," said Valentin with silver clearness. "Let us both bow to our master."And they both stood an instant uncovered while the little Essex priest blinked about for his umbrella.