In the past, this was the only series for which I would purchase the collector edition automatically, without a "test drive." While Trail of Shadows was interesting, and followed the theme, it did not have the complexity and depth that previous games have had. The graphics were good, although it was difficult to find significant areas at times, and several of the puzzles were challenging. The ending was great! But the pace was plodding and the game did not have the diverse and interesting puzzles past games have had. I will definitely try the next one before buying it.