Prahran, Vic. : Hardie Grant Egmont, 2010.
1 online resource : ill.
Zac Power is facing his biggest challenge ever! And this time the whole world is in danger... GIB's worst enemies have joined forces for their most evil plan yet, led by a mysterious new enemy called the Shadow. This mission will be the ultimate test of Zac's spy skills -- especially if it means the end of the Government Investigation Bureau.