Hidden on: 06/13/2018
Title: I Survived Hurricane Katrina, 2005
Author: Lauren Tarshis
Tracking Number: 4525
Location: Beards Plaisance, Minneapolis, MN United States
Find the KZGS behind the KRXMRX HSVOGVI.
Go down the KZGS until you reach the pile of YIZMXSVH.
Look around the pile and you should see the book you are looking for.
Another clue: For encoded parts the Atbash cipher was used.