This game is the collector´s edition of the original game which adds some extra interesting features like: Integrated Walkthrough and Strategy Guide. Find all eight of the Forbidden Holographic Diary Artifacts to learn about Pandora's secret past. Solve the Glyph Quest to unlock the Secret Chamber of ZEM. Inside the Chamber of ZEM, complete eight bonus puzzles and hidden object scenes to unlock the addictive ZEM Match Three puzzle game. Compete for trophies and more.