
Written by Elizabeth Levy · Illustrated by Denise Brunkus
Part of the Invisible Inc. series
Mysterious messages haunt a class's online invitation. Can an unseen ally save them?
A class's excitement to invite author D. B. Spooks turns to fear when eerie messages appear on their computers. With the school's safety at risk, their invisible friend must unravel the mystery. Will they uncover the source before it's too late?
When the class goes online to invite their favorite author, D. B. Spooks, to visit their school, someone starts sending scary messages over the school computer, and their invisible companion must help to save the day.
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