The Crossed Keys are the ancient iconography for the gates of heaven. Inverted, the keys represent the gates of hell.
It's this strong symbol of power that pairs perfectly with Peter Turner's mentalism work.
In the right hands, his techniques can be used for enlightenment, for entertainment, for good.
In the wrong hands, the powerful secrets he's created can be used for misleading people, for creating belief... for evil.
It's with this power in mind that The Crossed Keys deck stands resolute.