Alyssa's Diadem of Invisibility

The Diadem was given to Alyssa as a gift from Sam after they became close friends, the diadem was created by Sam's Grandmother and has been shown to turn the wearer completely invisible to anyone.

It was seen in Jennifer's magical item shop before given to Alyssa as a present, it wasn't until Sam came into the store looking for some gifts for his friends. It has been used many times in different battle and sneaky situations by a few of her close friends and herself.

The Diadem was snapped during the Battle of Addams, while Alyssa was trying to escape through the mania of the theatre. It is unknown who destroyed the Diadem, however, the remainder of pieces now belong to a history museum.