TYPEWRITER TROUBLE*
Dear Mum,
Thanks for sending me your old electronic typewriter. It’s great apart from a strange little problem with the daisy wheel. Every time I type the letter x ju tubsut up hp gvooz. J nvtu hfu ju gjygf yjgp K eqog jqog.
Nqvu qh nqxg,
Oczlqh
Who sent the letter?