Who am I?

I am your worst nightmare. I am the watcher in the shadows. The voice in the dark..the haunter of your dreams.

I am the lord of the kingdom of the night. You are my puppet. I am the master of life and of death. You will obey.

Beware of Koschei the Dread. Bow to his name,! He can make all things happen and if you make him angry--you will be punished.

You can try to fight me. But you cannot win. I am invincible. Unkillable. I am the Unknown. And I can see your every move, and I can make even the leaves of the trees outside your window shake at my command.. I can see you as you lie asleep, I can hear your every breath.

For I am Koschei the Dread, the greatest sorcerer who ever lived, and I cannot die.