Copper

Copper is the 14th clue. It is a Madrigal clue and was located inside the arm of Hope Cahill.

History
This clue was hidden by Hope Cahill in a computer chip that contained information on the clue. She hid the chip inside of her arm.

Copper
Copper (Cu) is the 29th chemical element. It is commonly used in wiring, building materials, and various other uses. It is also used on the plating on pennies.