mystery
/ˈmi-st(ə-)rē/
noun
something not understood or beyond understanding : enigma
a piece of fiction dealing usually with the solution of a mysterious crime
the secret or specialized practices or ritual peculiar to an occupation or a body of people
The mystery of his disappearance has never been solved.
Reading mysteries was her favorite pastime.
noun
trade, craft
a body of persons engaged in a particular trade, business, or profession : guild
noun
a medieval drama based on scriptural incidents (such as the creation of the world, the Flood, or the life, death, and resurrection of Christ)