Man vs Beast - Book 6, CHERUB series by Robert Muchamore
Title: 06 Man vs Beast
Author: Robert Muchamore
Every day thousands of animals die in laboratory experiments. Some say these experiments provide essential scientific knowledge, while others will do anything to prevent them.
James and Lauren Adams are stuck in the middle.
They’re CHERUB agents. Trained professionals with one essential advantage: adults never suspect that children are spying on them.
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.
CHERUB: Meet Lauren, Kyle, Kerry and the rest of the cherubs for the first time and learn how James foiled the biggest terrorist massacre in British history. The Recruit tells James Adams' story from the day his mother dies. Read about his transformation from a couch potato into a skilled CHERUB agent.
Leon is a small time crook who's ridden his luck for three decades. When he starts splashing big money around, the cops are desperate to know where it came from.
For official purposes, these children do not exist. 
