1. Travel (or warp) to Dr. Torsche's Mansion, Grand Library (via Mansion's Reception Hall). 2. Fight your way through until you get to the Laboratory entrance located in a small room at G-5/6. 3. Inside the laboratory (J-3), talk to Kamen. Choose the option "Who is Catherine". [key item: Catherine's Spine] 4. Return to Dr. Torsche. Next Quest: "Open Your Eyes Catherine"