The only reason why this book would have been banned for 50 years in Britain is because the story line pierced into the heart of Britain's then hypocritical puritanical system. The legal system in particular chose to ignore the plight of Boys forced into a brutal and uncompromising work system and then to be abused mentally, emotionally, physically and in many instances sexually. These factors James Hanley has expertly crafted into his story.
The charge of obscenity which was at the forefront of the banning is simply ludicrous by today's standards. Whilst the story alludes to sex acts between obnoxious drunken sailors and the Boy and possibly 2 acts with prostitutes in Alexandria, no details are given. The former filling the Boy with utter disgust and the latter being somewhat confusing and frightening for the inexperienced Boy.
The main import of the story is the tragedy that is the short life of the Boy- that for countless numbers of boys through history cries out on their behalf and in a sense becomes a story that needed to be told.