Jack and Sarah are back. Sibling spies for Quotient — the world's most covert independent agency — they've barely had time to breathe after the events of The Quantum Contingent. Their vacation ends abruptly when a mysterious wind of death begins targeting President O'Connor and world leaders, and no one can explain it.
What follows is a race across two timelines — 2028 and 2050 — as the Quotient team fights to protect the present while unraveling a threat that reaches into the future. Quantum Time is a fast-paced adventure thriller with richly detailed real-world locations, a large cast of engaging characters, and tomorrow's technology woven into every chapter.
New locations span Sydney and the Great Barrier Reef, the Dead Sea, Masada, Paris, Austin, Munich, Shanghai, and Bangalore — all places Gregory R. Simpson has visited personally, brought to life with the same authenticity that defined Book 1.
Reader Review
"Quantum Time is a masterfully crafted sequel that will appeal to lovers of time travel, sci-fi, and espionage thrillers. Simpson delivers spell-binding plot twists and deeply human characters facing seemingly invincible villains. A must-read for fans of the genre."— Keith Mbuya, Readers' Favorite (5 Stars)
Available Formats
- Ebook — available on Amazon Kindle
- Paperback — available on Amazon
- Audiobook — available on Audible, narrated by the author