Hidden on: 11/18/2018

Title: Harry Potter and The Goblet Of Fire

Author: JK Rowling

Tracking Number: 6491

Location: Mt. Etna Park in Clairemont (92117), San Diego, CA United States

Clue:

Use the substitution cipher in the Book Scavengers (the one that the main characters use to communicate with each other) to help you find the book.
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BF ABC HRDKCD DXRVK XI ABC HTVVBFC ETCU.