Locks a paramount mystery which has been cast with a key.
Let there be Light.
This mystery may only be cast in conjunction with a PARAMOUNT MYSTERY and a KEY MYSTERY. It has no effect other than in those circumstances. This Lock aligns the target PARAMOUNT MYSTERY to the alignment of LIGHT. If both lock mysteries are being cast together to create the MUTABLE LOCK then coin cost is halved for both.
This mystery can only be cast at an event under the sign of Taurus