<p>The story of Dr William Jackson Crawford, an engineer and teacher, who carried out a series of strange experiments with a teenage medium and her family before his untimely death on the shores of Belfast lough in 1920. </p><p>Dr Crawford’s findings were extraordinary and widely published – but was it all a hoax?</p><p>Episode 2 – The Unseen Operators</p><p>Dr Crawford invites a visitor to attend a séance with Kathleen and her family, known as the Goligher Circle. Sir William Barrett, a highly respected physicist and parapsychologist, is astonished when a wooden table appears to float into the air.</p><p>Meanwhile, nearly one hundred years later – Reggie Chamberlain King’s plans to give a lecture about Dr Crawford and Kathleen Goligher are disrupted when a protest is announced.</p><p>Readings by </p><p>Dave Fleming Lucy McConnell Mark Claney Stephen Beggs</p><p>Produced by Conor McKay Editor Andy Martin A BBC Northern Ireland production</p>