Celebrate 10 years of mystery solving with the latest entry into the Professor Layton series, Layton'S Mystery Journey: Katrielle and the Millionaires' Conspiracy. When Professor Hershel Layton goes missing, it's up to his daughter, Katrielle, to figure out what's going on! As Kat, explore different environments and solve a collection of different puzzles that will get you closer to finding your father. Uncover secrets and crack the code - every solution requires an outside-the-box, Layton-like way of thinking.