The Maze is the ultimate thievery challenge: it will require all your skills, but the rewards are great! It is a giant dungeon with many paths in it and a chest at the far end. The Maze is filled with traps that won't instantly kill you, but they will reduce your health.
Your goal is to reach the chest with as much health as possible. The Maze is the only way to acquire a unique resource called Crystal Tears and develop unique upgrades for your dungeon.