The United Middle School Mysteries Book 9 (Paperback) (ISBN-13: 9798231906314)

The Loop was never just a chatroom.

When a mysterious flash drive reveals a hidden student network being used to blackmail kids, the United Middle Mystery Club dives into their most dangerous case yet. As the secrets pile up and their school turns against them, they must team up with a tech-savvy new ally-Riley Torres, who might be the key to stopping it... or the one who built it.

A gripping middle grade tech-mystery about trust, truth, and the code that sees everything.