Page 201. " like those boys who killed James Bulger "

In 1992, two-year-old James Bulger was abducted from a shopping centre in Bootle, on the outskirts of Liverpool, by two ten-year old boys who tortured and murdered him. His body was found on a railway line in nearby Walton two days later.

Robert Thompson and Jon Venables were convicted of his murder in November 1993. Both were aged 11 at the time, making them the youngest convicted murderers in modern English history. They served eight years and were released in 2001 on a lifetime licence, with new names and new identities.

In 2010 however, it was revealed that Jon Venables was being returned to prison, charged with possession and distribution of indecent images of children.

Page 207. " a revelation "
Michelangelo's Fresco of The Last Judgement
Public DomainMichelangelo's Fresco of The Last Judgement

Jon delves into the Book of Revelation, seeking comfort and redemption. Officially titled The Book of the Revelation of John, it is the last of the collection of writings that make up the New Testament.

Cryptic in style, it is the only book of the Bible to deal with apocalypse. In a tumultuous and epic vision, heaven, earth and hell are brought together in an ultimate confrontation symbolising the clash of good and evil.

Page 223. " morse code "
 Morse Code is a way of transmitting information via use of clicks, lights and on-off tones which can be deciphered by a skilled receptor or with special equipment. The International Morse Code encodes signals in the form of dots and dashes and was first developed by Samuel Morse in 1836 so that telegraph operators could decode indentations marked on strips of paper tape into text messages.

Today it remains hugely popular with amateur radio operators.