The Sleepwalker by Robert Muchamore

An airliner explodes over the Atlantic leaving 345 people dead. Crash investigators suspect terrorism, but they're getting nowhere. A distressed twelve-year-old calls a police hotline and blames his father for the explosion. It could be a breakthrough, but there's no hard evidence and the boy has a history of violence and emotional problems. Only CHERUB agents can unearth the truth. They're trained professionals with one essential advantage: adults never suspect that children are spying on them. For official purposes, these children do not exist.
About the Author: Robert Muchamore is the bestselling author of the Cherub and Henderson's Boys series.

Audio books are a great way for children to experience stories, regardless of whether they are solid readers or just like a narrative read to them. Your children can listen to talking books in all kinds of places. A girl or boy can hear an audiobook walking to school. You can listen to an audiobook in CD format on a CD player or convert it to mp3 format and listen on an ipod, there are instructions on how to transfer to mp3 here

The Sleepwalker by Robert Muchamore