Book Review: ‘Killer Spirit’ by Jennifer Lynn Barnes

Book Title: Killer Spirit
Author: Jennifer Lynn Barnes
Publisher: Penguin
Number of Pages: 368
ISBN: 0241802369
Date Published: Jan. 8, 2026

Book Review

In “Killer Spirit“, the second book in Jennifer Lynn Barnes’s ‘The Squad; series, the reviewer found an entertaining blend of espionage, humor, and high school drama. The novel continues the story of Toby Klein, a cheerleader-secret agent who is balancing a dangerous new mission with her campaign for Homecoming Queen—a title that would make her the first sophomore to achieve the honor. As Toby navigates everyday teenage challenges, she is also thrust into increasingly perilous situations involving bombs, powerful adversaries, and a mysterious law firm.

The book is appreciated for its fast-paced plot, clever spy gadgets, and colorful cast of characters, all of which contribute to the book’s engaging atmosphere. Toby’s growing relationship with her crush, Jack, adds a touch of romance that complements the action without overshadowing it. The novel’s witty writing and emphasis on capable, empowered female characters further enhance its appeal.

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Further, “Killer Spirit” has improved pacing and more dynamic character interactions than the first book. However, some aspects remain less developed, particularly certain character arcs and the broader mythology established in the first book. Unresolved storylines involving the sinister law firm and lingering questions about key characters leave the duology feeling somewhat incomplete. Hope these were cleared.

Despite these shortcomings, Jennifer Barnes’s “Killer Spirit” is an exciting and enjoyable sequel that successfully builds on the strengths of the series. Packed with action, mystery, and light romance, it is likely to appeal to fans of young adult thrillers. While the ending leaves several threads untied, the novel’s charm and adventurous spirit make it a memorable read and leave readers wishing for a continuation of Toby’s story.

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