The Little Lame Prince by Dinah Mulock

And what of the traveling-cloak? What sort of cloak was it, and what A good did it do the Prince?

Stay, and I'll tell you all about it. Outside it was the commonest-looking bundle imaginable -- shabby and small; and the instant Prince Dolor touched it, it grew smaller still, dwindling down till he could put it in his trousers pocket, like a handkerchief rolled up into a ball. He did this at once, for fear his nurse should see it, and kept it there all day -- all night, too. Till after his next morning's lessons he had no opportunity of examining his treasure.