Countdown Zero (An Agent Zero Spy Thriller—Book #18)

Enigma Zero (An Agent Zero Spy Thriller—Book #17)

Rogue Zero (An Agent Zero Spy Thriller—Book #16)

Fractured Zero (An Agent Zero Spy Thriller—Book #15)

Command Zero (An Agent Zero Spy Thriller—Book #14)

Shadow Zero (An Agent Zero Spy Thriller—Book #13)