Finding Correct Routes
Here are some tips for finding the correct routes in some of the more confusing spots:
Region 2: City of Desolation - In the fourth and last area ("Night"), the normal exit is actually the dead-end ruins that lead to the Hall of Arrogance. The locked gate at the other end can be opened only by Kendal (after completing enough story quests).
Region 3: Hall of Arrogance - Go through both the Library of Memories and the Vestibule (via the branching paths in the Sunrise Atrium), in either order. Then, after returning to the Antechamber, go up the stairs at the idol sanctuary to reach the end.
Region 4: Valley of Solitude - The exit gates are all on the upper level. Find the slopes that go up, and stay on the upper level to reach the exits.
Region 6: Road of Chaos - In the second and third areas, the exit gates are randomly located on either the lower or upper level. Find the sloping U-turns to reach the upper level, if necessary. In the fourth and last area ("To the Gateway"), the boss Encablossa is at the end of the lower level, while Keither can be reached by Kendal, Regnier, and Leinhart on the upper level (after the necessary story quests are completed).