49 books • 6 series
Book #1: In Search of the Time and Space Machine
Book #1: Mission: In Search of the Time and Space Machine
Book #2: Spy Force Revealed
Book #2: Mission
Book #3: The Nightmare Vortex
Book #3: Mission: The Nightmare Vortex
Book #1: The Time and Space Machine
Book #2: Spyforce Revealed - Max Remy
Book #5: The Amazon Experiment - Max Remy
Book #6: Blue's Revenge