Mace is the 21st clue. It is a Madrigal clue and was hidden in Jamaica.
History[]
It is unknown how this clue was hidden originally but it was placed inside a box that had five artifacts that needed to be placed into small slots in the box for it to open. There was a jade necklace that had a dragon carved onto it that represented the Ekaterina branch. The necklace was owned by Grace Cahill but it was passed onto Amy Cahill after her death. The bear claw, from a cave in the Bahamas, represented the Tomas, the wolf fang, from Isabel Kabra's charm necklace, represented the Janus, and the silver snake earrings, one held by a woman in Jamaica and another by Nellie Gomez, symbolized the Lucians. Unknown to the other clue hunters, there was a fifth slot that was extremely hard to see. Eventually the slot was found but it took a while. The slot held a gold mobius strip that was placed in the statue of Nanny of the Maroons. It represented the Madrigals and how they are trying to bind the Cahill family together.
Mace[]
Mace is actually a type of spice. It has been used for defensive purposes as it can cause a burning feeling when in contact with the skin. It is typically put in bottles and used to spray into the eyes of one's enemies.