This is a library geocache. Please only visit the cache during library hours.
Follow your GPS to the posted coordinates, this is where your adventure begins. Here you will find a magnetic hide-a-key that contains the name of a specific mural inside the library building. You will use this mural to assemble the Dewey Decimal catalog number where the cache container is hidden within the Adult Non-Fiction section.
The Dewey Decimal Number you will need to find the cache is ABC.DE XYZ (Adult Non-Fiction)
A = Number of letters in the artist's first or last name.
B = The Number of muskets you see
C = Third digit in the year the mural was created
D = Number of cannonballs, times 2
E = Second digit in the year
XY = First two letters in the artist's first name
Z = second letter in the artist's last name

You can validate your puzzle solution with certitude.
Enter the Dewey Decimal number and three letters without spaces.
The geocache is only accessible during the following hours of operation:
Mon- Thurs: 9am-9pm
Fri & Sat: 9am-5pm
Sun: 1pm-5pm* (Closed - Father's Day through Labor Day Weekend)
Closed federal holidays.
Please only visit the cache during library hours.
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Thank you to fellow cacher RLCpunk, and the staff at the Monmouth County Library for supporting this cache idea and allowing it's placement.
I hope you enjoy watching cachers search for this one as much as cachers will enjoy searching for it.