Dropping dead down the aeroplane soared straight up, curved in a loop, raced, sank, rose, and whatever it did, wherever it went, out fluttered behind it a thick ruffled bar of white smoke which curled and wreathed upon the sky in letters. But what letters? A C was it? an E, then an L? Only for a moment did they lie still; then they moved and melted and were rubbed out up in the sky, and the aeroplane shot further away and again, in a fresh space of sky, began writing a K, an E, a Y perhaps?