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Masterminds by Gordon Korman: Middle-Grade Mystery Adventure

Middle-Grade: Masterminds by Gordon Korman is the first book in an action-adventure trilogy set in the seemingly perfect town of Serenity, New Mexico. Eli and his friends investigate a mystery that challenges what they know about their community and the adults around them.

At a glance

  • First book in a trilogy by Gordon Korman.
  • Eli's investigation with his friends uncovers secrets behind the apparently crime-free community of Serenity.
  • The listing describes a suspenseful, clue-driven adventure involving children, their parents and a town with a hidden history.
Price
$5.63Save 44%

Reference price: $9.99

Price checked: Nov 12, 2026

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Often bought together

Pros and cons

Pros

  • A connected mystery with clues and twists may suit readers who enjoy figuring out secrets alongside the characters.
  • The story centers on a group of young friends investigating their own community, with stakes that challenge their trust in adults.

Technical specifications

11 specifications
Book details
PublisherHarperCollins
Publication dateFebruary 2, 2016
EditionReprint
LanguageEnglish
Print length352 pages
Reading age9 - 12 years, from customers
Grade level3 - 7
ISBN-100062299999
ISBN-13978-0062299994
Dimensions and installation
Weight listed10.4 ounces
Dimensions5.12 x 0.7 x 7.62 inches

What to know before buying

  • The listed reading age is attributed to customers, while the grade-level range is supplied separately. These are guideposts, not an individual reading-level assessment.

Who is it for?

A good fit for

  • Middle-grade readers who enjoy mysteries, suspense and young characters investigating a hidden conspiracy.
  • Readers looking for the opening installment of a trilogy, rather than a standalone story.

Less suited to

  • Readers seeking a self-contained standalone book, since this is identified as the first book in a trilogy.

Customer reviews on Amazon

4.7 / 5 · 2,420 ratings
  • 5 stars82%82%
  • 4 stars13%13%
  • 3 stars4%4%
  • 2 stars0%0%
  • 1 star1%1%

Customer feedback describes the story as engaging and twist-filled, and highlights its characters, thought-provoking elements and appeal to young readers. That enthusiasm fits the book's group investigation and mystery premise, though readers who want a complete ending in one volume should note that it begins a trilogy. Aggregate ratings are strongly positive overall, but do not establish that every reader will respond the same way.

Positive themes

  • Customer feedback praises the intriguing, twist-filled storyline and engaging read.
  • Feedback highlights relatable characters, including strong female characters, and thought-provoking elements.
  • Customers describe it as appealing to young readers and express interest in continuing the series.

Frequently asked questions

What is Masterminds about?

Eli Frieden and his friends investigate a mystery in Serenity, New Mexico, and discover that their seemingly ideal community is not what it appears to be.

Is this a standalone book?

No. The listing identifies it as the first book in a trilogy.

What age and grade ranges are listed?

The listing gives a customer-sourced reading age of 9 - 12 years and a grade level of 3 - 7. These ranges are guidance rather than a guarantee of suitability for every reader.

How long is the book?

The listed print length is 352 pages.

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