Dora's mistake

YOU have no right to spoil my desk, you tiresome, mischievous boy! " "I've not spoilt it, Agnes; I've only ornamented it by carving that little pattern all round. " "I don't call that carving, nor ornamenting either! " cried Agnes, in an angry voice. "You've nicked it all round with your knife; you've spoilt my nice little desk, and I'll — " What threat Agnes might have added remains unknown, for her sentence was broken by a violent fit of coughing, whoop after whoop — a fit partly brought on by her passion.