Maximum Security - Book 3, CHERUB series by Robert Muchamore
Title: 03 Class A
Author: Robert Muchamore
The CIA have been hunting Jane Oxford, an international weapons dealer, for thirty years. Her only weak point is her son, Curtis. It’s a job for CHERUB.
CHERUB kids are highly trained professionals. Their essential advantage: a criminal never suspects that a kid could be spying on him.
This is James Adams’ most dangerous mission so far, working undercover inside a maximum security prison. Over the years, CHERUB has put hundreds of criminals behind bars.
Now, for the first time ever, they’ve got to break one out.
As always... For official purposes, these children do not exist.
About the Author
Robert Muchamore was born in Islington in 1972 and spent thirteen years working as a private investigator.
The government is building a secret army of intelligence agents to work undercover, gathering information and planning sabotage operations. Henderson's Boys are part of those operations, but don't bother looking anywhere else because "For official purposes, these children do not exist"
CHERUB is not James Bond. There are no master criminals or high-tech gadgets. CHERUB kids slip under adult radar and get information that sends criminals and terrorists to jail.
For official purposes, these children do not exist. 
