Set up high on the cliffs, in the grounds of a ruined monastery, overlooking the dreary town of Blinkton-on-Sea, is the otherwise unremarkable Blinkton High School. Here resides the enigmatic Inky Stevens - a talented and astute student, better known as 'The Great School Detective'. A straight forward investigation into who was responsible for a misdirected but wounding snowball, sets our school sleuth on the trail of a much greater and more menacing crime.