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Quantum Echoes
**When a mysterious girl falls through a portal into your backyard, claiming to be your daughter from a timeline you never lived, how do you protect her from the forces that want her dead?**
Physics professor Craig Sterling and quantum computing expert Dr. Sarah Ellis have built a quiet life in Tucson, teaching at the University of Arizona and trying to forget the nightmare they survived in Las Cruces—where a breach from an advanced timeline nearly destroyed everything. They thought the enemy was dead. They thought they were safe.
They were wrong.
A portal tears open in the desert behind their house. A teenage girl stumbles through, bloodied and terrified, followed by a rogue Nexus agent-enforcer named David-14. Before Craig and Sarah can process what's happening, the girl clutches Sarah and whispers a single "Mom."
The girl's name is Rachael. She looks exactly like them—Sarah's eyes, Craig's jawline, a perfect genetic match. But they never had a daughter. They've never even met her before. And the rogue agent who brought her through disappeared before they could demand answers, leaving only a cryptic "Keep her safe. She is primary."
As Craig and Sarah scramble to understand what Rachael is and why she exists, the evidence becomes impossible to ignore. She's too smart, too fast, her reflexes inhuman. She knows things she shouldn't. And when she starts unconsciously writing fragments of advanced code—code that could bring down an entire system spanning multiple timelines—they realize she's not just in danger.
She was designed to be dangerous.
With mysterious agents closing in and Rachael's true purpose still encrypted in her DNA, Craig and Sarah face an impossible protect the girl who's somehow become their daughter, or let her fulfill the mission she was created for—even if it means losing her forever.
Some weapons have hearts. Some daughters have kill codes. And some families are forged in the space between timelines.
Physics professor Craig Sterling and quantum computing expert Dr. Sarah Ellis have built a quiet life in Tucson, teaching at the University of Arizona and trying to forget the nightmare they survived in Las Cruces—where a breach from an advanced timeline nearly destroyed everything. They thought the enemy was dead. They thought they were safe.
They were wrong.
A portal tears open in the desert behind their house. A teenage girl stumbles through, bloodied and terrified, followed by a rogue Nexus agent-enforcer named David-14. Before Craig and Sarah can process what's happening, the girl clutches Sarah and whispers a single "Mom."
The girl's name is Rachael. She looks exactly like them—Sarah's eyes, Craig's jawline, a perfect genetic match. But they never had a daughter. They've never even met her before. And the rogue agent who brought her through disappeared before they could demand answers, leaving only a cryptic "Keep her safe. She is primary."
As Craig and Sarah scramble to understand what Rachael is and why she exists, the evidence becomes impossible to ignore. She's too smart, too fast, her reflexes inhuman. She knows things she shouldn't. And when she starts unconsciously writing fragments of advanced code—code that could bring down an entire system spanning multiple timelines—they realize she's not just in danger.
She was designed to be dangerous.
With mysterious agents closing in and Rachael's true purpose still encrypted in her DNA, Craig and Sarah face an impossible protect the girl who's somehow become their daughter, or let her fulfill the mission she was created for—even if it means losing her forever.
Some weapons have hearts. Some daughters have kill codes. And some families are forged in the space between timelines.
288 pages, Kindle Edition
Published December 3, 2025
About the author
Craig Kelley
13 books1 followerCraig is the author of How to Get Out of Debt and an avid blogger. He strives to help people maximize their time and succeed financially as well as personally. He has been a leader in several start-up companies including Mokumax Virtual Domains & Servers, Inc. and currently HealthcareSupplyChain.
http://5minaday.com/how-to-get-out-of...
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