The tree-house was no beauty. Pete's father had made it out of odds and ends of timber and put a tin roof on it. He had fixed it in a fork of the old apple tree.It wasn't very big, but it had a door of sorts, and a kind of window.
Inside there was an old folding garden-chair for sitting on, and a shelf for keeping things on, and the whole tree-house was rainproof.
Most importantly, it was Pete's, and on its side was written in big black letters: Private Keep Out
On this particular Mouseday, Pete was thinking about the actual words his mum or dad always used.
