United Middle School Mysteries- The Disappearing Letter

Mysteries at United Middle: The Disappearing Letter and Other Enigmas"e;United Middle School seems like any other school—until strange events start to unfold. When letters vanish, clocks go haywire, and office chairs disappear, it's clear something mysterious is afoot. Thankfully, Jake, Emily, Amy, and Max—United's own young investigators—are on the case.From uncovering muddy footprints to trackin...