you have to rea the7th book in the sisters grimm series
Mirror Master was created in 1989.
Mirror
They have both fought Mirror Master.
I did it was easy after the sixth book
The Master is revealed in the seventh book, the Everafter War. The Master is... MIRROR! Pinocchio's evil creepy living puppets steal Sabrina's keys to the Hall of Wonders and let out everything living in there. Sabrina, Puck, and Daphne think that maybe Mirror's hurt and go into the mirror to look for him. They find his secret room, where he steps out of the shadows and tells the children that he is the Master.
Evan McCulloch goes by Mirror Master.
The Master of the Scarlet Hand is Mirror. This is foreshadows in Book 7 when it is said that the master can see everywhere. (Mirror has access to a lot of people and information, because his mirror holds the Reflection Room that has passages to every mirror made by Bunny Lancaster, or the Evil Queen in Snow White.)
Mirror. Can u belive it! Well it is kinda predictable! But still i was shocked! Yea, it's Mirror from the Hall of Wonders.
SPOILER! SPOILER! Before you read any further I hope you realize that this is a spoiler! Don't say I didn't warn you. The infamous Master of the Scarlet Hand in the Sisters Grimm books turns out to be Mirror.
The important thing is to carry a mirror shield with you. Otherwise, the cockatrice will quickly lower your combat stats. You can buy a mirror shield from any slayer master, or from the Grand Exchange.
To become a puppet master, one should practice in front of a mirror or in front of a video camera. Also be sure to watch puppeteers that you admire and take notes on how they work.
U have to find the master sword in kokori forest and break the "mirror" puzzle.