That's really nice Zorja, but you must give me credit where due. I found it first.
Steam topic: http://forums.steampowered.com/forums/showthread.php?t=2799392
Reddit topic: http://www.reddit.com/r/gaming/comments/wgjh6/steam_summer_sale_hidden_achievement_witcher_2/
My YouTube video: http://www.youtube.com/watch?v=HDNY34gumj4
Steam topic: http://forums.steampowered.com/forums/showthread.php?t=2799392
Reddit topic: http://www.reddit.com/r/gaming/comments/wgjh6/steam_summer_sale_hidden_achievement_witcher_2/
My YouTube video: http://www.youtube.com/watch?v=HDNY34gumj4