'Anthony Horowitz is the lion of children's literature.' Michael Morpurgo, Children's Laureate
'The wit is effortlessly classy, the characterisation thoughtful, and the tension as taut as the simple yet ingenious devices. The fact that Horowitz has a child as his hero is an irrelevance in the excitement of re-encountering such a turbo-charged imagination.' The Times
'Teenage superspy versus eco-terrorists equals fast and tense action.' The Daily Express
'Will last forever as one of the children's classics of our age.' The Times
'The series that re-invented the spy genre…' Independent