10 stories. 10 mysterious situations. 10 brave kids. 20 minutes of clues.

-Omar is buried alive in a coffin. Who put him there?
-Kane’s parachute fails during a skydive. Is someone trying to kill him?
-Fang is investigated by secret police. Can she prove she isn’t a traitor?

The eighth book in the bestselling and award-winning middle grade action series.