I, the Spy by Allison Maher

Fifteen-year-old Andrew likes his new best friend, Brian. They enjoy hanging out together and telling jokes. But one day, soon after Brian has revealed that “Brian” is not his real name and that he and his parents are in the Witness Protection Program after his father informed on some bank embezzlers, Brian and his family go missing. Now Andrew has to step into action. Enlisting the help of his mother, who tests electronic surveillance gear, and his father, an environmental biologist, Andrew sets out to find and rescue his friend. Will his mother’s high-tech gadgets – and his courage – be up to the task? If you like fast-paced books full of danger and cool tools, you’ll like I, the Spy.