Today is my birthday – thirty-six, if you must know – and my brother Marcus (whose fifth novel comes out on June 9, don’t forget!) loaded me down with a mountain of treasures, including CD Projekt’s latest, The Witcher 2: Assassins of Kings. I own the original Witcher, on account of a Steam sale, but I never got more than ten minutes into it. Many a positive review of this sequel landed it on my …