The emerald tablet

Finding an old map, Gabe and his friends follow clues to a secret chamber beneath San Francisco, where they perform what they think is a friendship ritual before strange events reveal a sinister cult from a parallel realm.

Main Author: Jolley, Dan (Author)
Format: Books Print Book
Language: English
Published: New York, NY : Harper, an imprint of HarperCollins Publishers, [2016]
Edition: First edition.
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