Two of Zac's WETTEST missions in one book: DEEP WATERS and SHIPWRECK!
In Deep Waters, Zac's mission is in one of the deepest oceans in the world. Even GIB's subs can't handle the depth. But the enemy has invented a new sub that can dive deeper than ever before. Can Zac find the enemy, and protect the top-secret information stored on the seabed?
Then, in Shipwreck, Zac is searching underwater for a missing GIB agent. Can Zac find him in the mysterious Black Triangle before it's too late?