47 books • 3 series
Book #1: Poison Island
Book #2: Deep Waters
Book #2: Zac's Even Bigger Hits: Volume 2
Book #3: Mind Games
Book #3: Zac's Biggest EVER Hits: Volume Three
Book #5: Zac Power Test Drive - Zac's Freaky Frogs
Book #6: Zac Power Test Drive - Zac's Ski Mission
Book #7: Zac Power Test Drive - Zac's Bank Bust
Book #8: Zac Power Test Drive - Zac's Shark Attack