Complex sentence: Anne-Claire destroys Prime, Tycho and Gabe kill Mundo, the Player retrieves the Necrowombicon, and all are promptly betrayed by Dr. Blood, who steals the book before vanishing.
Split into simpler sentences: Anne-Claire destroys Prime, Tycho and Gabe kill Mundo, and the Player retrieves the Necrowombicon. All are promptly betrayed by Dr. Blood, who steals the book before vanishing.