Killer Instinct (Deluxe Limited Edition) (The Naturals, 2) book cover by Jennifer Lynn Barnes
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Killer Instinct (Deluxe Limited Edition) (The Naturals, 2)

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Teen & Young Adult • Friendship • Social & Family Issues
The Naturals • Book 2 of 6
Victims linked to a serial killer Cassie's profiling skills tested Team confronts past traumas Copycat mimics Dean's father Mind games escalate with danger

Seventeen-year-old Cassie Hobbes has a gift for profiling that earned her a place in an elite FBI program for teens with innate crime-solving abilities. After barely escaping a confrontation with an unbalanced killer who was obsessed with her mothers murder, Cassie hopes the Naturals can stick to solving cold cases from a distance.

When victims of a brutal new serial killer begin turning up, the Naturals are pulled into an active case that hits close to home: the killer is a perfect copycat of Deans incarcerated father. The team must probe deeper into a murderer's psyche while resisting the copycats violent mind games that threaten to snare them all.

Seventeen-year-old profiler Cassie Hobbes and the Naturals must stop a brutal copycat mimicking Dean's incarcerated father's murders before he ensnares them.
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Edition information

Book details

Series
The Naturals Book 2 of 6
Publisher
Little, Brown Books for Young Readers
Publication date
May 12, 2026
Print length
400 pages
Language
English
ISBN
031660397X

Friendship + Social & Family Issues

Reader guide

What to Know Before Reading Killer Instinct (Deluxe Limited Edition) (The Naturals, 2)

Cassie Hobbes is a teen profiler placed in an elite FBI program and recently escaped a killer tied to her mothers death. The novel centers on a violent copycat who reproduces the crimes of Deans jailed father, drawing the team into an active serial-murder investigation. Expect focus on group dynamics under pressure, psychological profiling, and an escalating external threat rather than supernatural elements. The stakes are procedural and personal, with tension built around whether the Naturals can outthink a murderer using their own methods against them.

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About the author

Jennifer Lynn Barnes

Jennifer Lynn Barnes

I'm a Jennifer who goes mostly by Jen, an Oklahoma girl who's also lived in Connecticut and England, and a writer who spent years with a not-so-secret double life as a cognitive scientist, studying the psychology of fiction and the psychology of fandom.
Author information: Wikipedia

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