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Echo Squad: The Whispering Statue: A Sound-Based STEM Mystery for Kids 9-12 - Book 1
Paperback
Publisher: Independently Published
Published: Jun 3 2026
Pages: 94
Weight: 0.24
Height: 0.24 Width: 5.50 Depth: 8.50
Language: English
He can see sound. She (his deaf little sister Mina) can weaponize silence. Together with their K-9, they're the Echo Squad.
When 12-year-old Leo Park's sister Mina invents glasses that make sound visible, Leo thinks they'll get grounded for life. He's half right.
Now they can see three-day-old whispers, invisible crime scenes-and a villain no one else can detect. The Conductor uses infrasound: sound waves so low no human can hear them, but powerful enough to shatter jade, control minds, and collapse buildings.
His next target? A concert hall with 3,000 people inside. His instrument? A frequency that turns human ribs into tuning forks.
Leo, Mina, and their retired German shepherd Rusty have one night, one broken pair of glasses, and one theory about a humming night guard named Carlos. If they're wrong, the whole city hits a deadly note.
Echo Squad: The Whispering Statue is a fast-paced middle-grade mystery for kids 8-12 who love:
Tech gadgets & real science (infrasound, resonance, phase cancellation!)
Sibling detective teams who use brains over brawn
Asian American heroes in STEM
Perfect for readers who enjoy The Mysterious Benedict Society, City Spies, and The 39 Clues.
Book 1 of the Echo Squad Series.
Listen closely - the echoes are always watching.
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