This year marks a century since John Maclean returned to Glasgow after suffering imprisonment, force feeding and hard labour at Peterhead Prison. One of the great revolutionaries of the Red Clydeside era, Maclean was revered by Lenin and Trotsky and described as the British Military Intelligence as 'the most dangerous man in Britain’. Henry Bell, whose book 'John Maclean: Hero of Red Clydeside' is out now, writes for Conter about what inspired him to study the iconic figure, and why he believes his message still matters...