Day Four at Magic HQ and it is a case of mind over matter as the sorcerees expand their brains with their latest magic subject, Mentalism. The Sorcerer's special guest is Marvin Berglas (creator of Marvin's Magic) and with the trainee magicians' crucial next performance looming, Marvin sets about inspiring the young mentalists with some astounding feats of mind magic. The pressure of their next performance is weighing on all the young magicians' minds, especially 12-year-old Rebecca who is struggling to keep her nerves in check. Dio's slack attitude lands him in hot water with the Sorcerer and his visit to the Clock Tower sets the cat amongst the pigeons with his fellow sorcerees. Magic maestro David Penn takes mentalism to the masses and Mr Knight and Miss Evans battle it out in another round of the increasingly bizarre teacher challenge.