'It's not burglars,' Alice whispered; 'the mysterious Stranger was bringing things in, not taking them out. They must be coiners - and oh, Oswald! - don't let's! The things they coin with must hurt very much. Do let's go to bed!'
But Dicky said he was going to see; if there was a reward for finding out things like this he would like to have the reward.
'They locked the back door,' he whispered, 'I heard it go. And I could look in quite well through the holes in the shutters and be back over the wall long before they'd got the door open, even if they started to do it at once.'
There were holes at the top of the shutters the shape of hearts, and the yellow light came out through them as well as through the chinks of the shutters.
Oswald said if Dicky went he should, because he was the eldest; and Alice said, 'If any one goes it ought to be me, because I thought of it.'
So Oswald said, 'Well, go then'; and she said, 'Not for anything!'
And she begged us not to, and we talked about it in the tree till we were all quite hoarse with whispering.
At last we decided on a plan of action.
Alice was to stay in the tree, and scream 'Murder!' if anything happened. Dicky and I were to get down into the next garden and take it in turns to peep.
So we got down as quietly as we could, but the tree made much more noise than it does in the day, and several times we paused, fearing that all was discovered. But nothing happened.
There was a pile of red flower-pots under the window and one very large one was on the window-ledge. It seemed as if it was the hand of Destiny had placed it there, and the geranium in it was dead, and there was nothing to stop your standing on it - so Oswald did.
He went first because he is the eldest, and though Dicky tried to stop him because he thought of it first it could not be, on account of not being able to say anything.
So Oswald stood on the flower-pot and tried to look through one of the holes. He did not really expect to see the coiners at their fell work, though he had pretended to when we were talking in the tree. But if he had seen them pouring the base molten metal into tin moulds the shape of half-crowns he would not have been half so astonished as he was at the spectacle now revealed.
At first he could see little, because the hole had unfortunately been made a little too high, so that the eye of the detective could only see the Prodigal Son in a shiny frame on the opposite wall.
But Oswald held on to the window-frame and stood on tiptoe and then he saw.
There was no furnace, and no base metal, no bearded men in leathern aprons with tongs and things, but just a table with a table-cloth on it for supper, and a tin of salmon and a lettuce and some bottled beer. And there on a chair was the cloak and the hat of the mysterious stranger, and the two people sitting at the table were the two youngest grown-up daughters of the lady next door, and one of them was saying -'So I got the salmon three-halfpence cheaper, and the lettuces are only six a penny in the Broad- way, just fancy! We must save as much as ever we can on our housekeeping money if we want to go away decent next year.'
And the other said, 'I wish we could all go every year, or else -Really, I almost wish -'