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INTRUSION CODE
For centuries, people have vanished without explanation.
When a reclusive programmer uncovers a repeating pattern behind global disappearances—stretching back hundreds of years—he realizes the truth is bigger, older, and far more dangerous than anyone suspects. To prove it, he recruits Max Dregar, a former Navy SEAL haunted by a childhood encounter he barely survived.
Max doesn’t want answers. He wants distance—from his past, from the violence he’s known too well, and from the fear that whatever took people like him is still watching. But when Steven’s predictions begin coming true, skepticism turns into a race against forces determined to keep the pattern hidden.
As proof mounts and government and nonhuman interests close in, Max learns he was never unique—just one of many, selected across generations. Survival wasn’t the end of the story. It was the beginning.
Blending high-stakes techno-thriller pacing with grounded military realism and unsettling speculative ideas, INTRUSION CODE explores what happens when humanity discovers it has never been alone—and was never meant to notice.
Some truths aren’t meant to be found.
And some patterns refuse to stay buried.
When a reclusive programmer uncovers a repeating pattern behind global disappearances—stretching back hundreds of years—he realizes the truth is bigger, older, and far more dangerous than anyone suspects. To prove it, he recruits Max Dregar, a former Navy SEAL haunted by a childhood encounter he barely survived.
Max doesn’t want answers. He wants distance—from his past, from the violence he’s known too well, and from the fear that whatever took people like him is still watching. But when Steven’s predictions begin coming true, skepticism turns into a race against forces determined to keep the pattern hidden.
As proof mounts and government and nonhuman interests close in, Max learns he was never unique—just one of many, selected across generations. Survival wasn’t the end of the story. It was the beginning.
Blending high-stakes techno-thriller pacing with grounded military realism and unsettling speculative ideas, INTRUSION CODE explores what happens when humanity discovers it has never been alone—and was never meant to notice.
Some truths aren’t meant to be found.
And some patterns refuse to stay buried.
394 pages, Kindle Edition
Published November 10, 2025
11 people are currently reading
2 people want to read
About the author
Rick Tippins
20 books21 followersRick Tippins was born in Ventura, California, and raised in Napa Valley. A U.S. Marine Corps veteran and retired law enforcement lieutenant, he served in SWAT, Narcotics, and Homicide during a distinguished career with the San Mateo County Sheriff’s Office.
Rick began writing in 1994 during night shifts at the county jail. What started as screenwriting evolved into a passion for novels, leading to the release of A World Slowed and many other titles across post-apocalyptic, science fiction, and thriller genres.
Rick began writing in 1994 during night shifts at the county jail. What started as screenwriting evolved into a passion for novels, leading to the release of A World Slowed and many other titles across post-apocalyptic, science fiction, and thriller genres.
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Displaying 1 of 1 review
December 1, 2025
A great alien invasion book!
INTRUSION CODE is a great, highly unpredictable alien invasion novel unlike any I've ever read. The quality of the writing is great, the characters highly flawed and likeable. Max and Steven also make a great team, with Max providing muscle and instinct, while Steven brings intellect and tech savvy, forming a formidable duo. The rest of the writing is simply excellent, there is nothing to critique. The plot is good and matches perfectly with the plot which builds suspense to an almost unbearable level before a very surprising denouement. Overall, 5/5 stars, highly recommended to fans of The X-Files, alien invasion novels and sci-fi thrillers. This is one of my all time favorite alien novels!
INTRUSION CODE is a great, highly unpredictable alien invasion novel unlike any I've ever read. The quality of the writing is great, the characters highly flawed and likeable. Max and Steven also make a great team, with Max providing muscle and instinct, while Steven brings intellect and tech savvy, forming a formidable duo. The rest of the writing is simply excellent, there is nothing to critique. The plot is good and matches perfectly with the plot which builds suspense to an almost unbearable level before a very surprising denouement. Overall, 5/5 stars, highly recommended to fans of The X-Files, alien invasion novels and sci-fi thrillers. This is one of my all time favorite alien novels!
Displaying 1 of 1 review