The Everlasting Letter

THIS printout

Cut the letter out (the entire rectangle). Cut the dotted lines (light grey). Take one end of the letter and just start folding. Fold in whatever direction you want, as long as it is on the lines. Keep folding on the lines until the entire letter is folded and you have a small rectangle. This is the first page of your letter. Make sure, as you write, that you draw arrows to which square they should look at next.