Your package? Your brother picked it up. You know, you two’re damn near identical… Hey! Where you running off to?!

— Hanne Kluger, postmaster

The Doppler is one of the most elusive monsters in all of the lands. This is because their perfected ability to transform into any creature as long as it is of similar mass…

Dopplers prefer to live in heavily populated areas, such as large cities like Novigrad. These creature are accustomed to living in these types of areas because it is where they are able to flourish; You see, many monsters, big or large seek the shelter of the quiet, dark forests and marshlands, to avoid contact with human kind all together, but Dopplers are very different.

There transforming ability allows them to become a clone of any of the thousands of people they may come across in the city, constantly changing form, taking the place of innocent civilians, reaping there rewards and benefits. A humans hatred for a Doppler may go far beyond that of a normal monster.

Dopplers, also unlike other monsters are completely sentient, and at times show enlightenment and morality that is not seen in there human peers. Geralt of Rivia always said that the easiest way to find a Doppler is to find a decent human…

Your only real experience with creature such as this is while you are staying in the Free City itself, You discover the location and sight of a wanted Doppler, but as you finally come face to face with it, it transforms into yourself. The Doppler can only take the appearance and sounds of a person, not there skills or strength, it is because of this that you are able to cut the Doppler down easily, or all the same let him go free.