sentences:  The completed Levine version appeared on torrent sites over two years later, on 12 October 2013.Elements of the story were reused by Douglas Adams for his novel "Dirk Gently's Holistic Detective Agency", in particular the character of Professor Chronotis who possesses a time machine.Adams did not allow "Shada", or any of his other "Doctor Who" stories, to be novelised by Target Books.