The 'Peacocks of Penzance' are regarded by many as myth. But that doesn't deter Arthur from seeking a quill from one in yet another attempt to get closer to Guinevere by writing to her cousin. What follows is treacherous skullduggery as Launcelot tries to dispatch Arthur - who is busy trying to dispatch Lord Epping - who is busy trying to dispatch Arthur. And Merlin adds to the general mayhem by mistaking the sleepwalking Lord Cornforth for a ghost - and with errant magic spells, tries to dispatch him too...