34 books • 6 series
Book #3: Splashdown
Book #4: Dead Ice
Book #7: Amber
Book #8: Justice
Book #9: Treasure of the Dead
Book #1: Berserk
Book #2: The Tomb
Book #3: Brainwash
Book #3: The Elementals
Book #4: Cavern
Book #1: Crucible
Book #6: Gold
Book #1: Atlantis Gold
Book #2: Ark Found
Book #4: Cross Found
Book #5: OUTCAST Ops
Book #2: Treacherous Tropics
Book #3: Perilous Pacific