The Thirteenth Locker (Paperback) (ISBN-13: 9781069513304)

At Lincoln Middle, there are twelve lockers in every row. But when sophomore Ava Martinez finds a rusted key labeled "13," she unlocks more than just a forgotten compartment-she uncovers a decades-old conspiracy buried beneath the school's polished surface.

As strange files, coded journals, and erased student records surface, Ava and her two closest friends are pulled into a dark web of secrets, experiments, and missing students. Someone has been watching. Someone is erasing the truth. And the closer they get to the answers, the more dangerous the questions become.