The Hidden Battle for London Town
A golden coin, minted in Ancient Rome and known as a Denarius, which depicts an eagle on one side and a image of Jupiter on the other. It tingles the fingers when you touch it.
The coin grants access to the Sky purview. Once a day, if the coin is squeezed in the palm, it creates 20 square feet of thick fog that can only be seen through by someone with epic perception equal to the user’s sky boons plus one.
In addition, for as long as the coin is on someone’s person, the wielder can see through fog, whether natural or created by the coin.