Every secret has a sound. At Oakwood Middle School, it sounds like a perfectly folded note sliding through a locker vent.
Rohan Patel has been carrying a secret for three months. He never told anyone - not his parents, not his friends, not even the Curious Club. But someone found out. And now they're using it against him.
When the Club investigates, they discover Rohan isn't the first. A runner who threw a race. A student council president who killed a budget. An actor sabotaging his own performance. One by one, the students of Oakwood have been forced to betray themselves - quietly, publicly, and without explanation.
The blackmailer is patient, careful, and closer than anyone realizes.
Hannah Chen has her corkboard. Rohan Patel has his laptop. Julia Martinez has her instincts. Jaden Washington has his sketchbook. Together, they've solved seven cases. But this one asks something none of them expected: what do you do when the investigation becomes personal?
A gripping middle-grade mystery about secrets, systems, and the courage it takes to tell the truth - even when it costs you something real.
Book 8 of The Curious Club Mysteries series. For readers ages 8-12.