Zac Power Mission Poision Island

This adventure book tells a boy who is 11 years old and he is a top secret spy and he works for a spy control called G.I.B. When he has to find Dr Dractic's base to find a formula to make a very poisonous solution called the X solution.  It made frogs and even piranhas.  Zac has to go under water with the piranhas!  He just goes down into Dr Dractic's base.  He sees his brother frozen in a block of ice.  Then Dr Dractic's henchmen sees Zac's Power.  Dr Dractic is now on the good side.  Then the volcano erupts so Dr Dractic tells where a glider is.  Then Zac gets Leon and flies but Leon is too heavy in the ice.  Then he just skims the volcano and flies off.  Then he got confused.  How did he started flying again.  Then he remembers when he was near the volcano the ice melted.  Then he flies back home safely.