Here is the full list of all 13 Faces of Illusion: The Twin Phantoms achievements.
Find the mansion without stepping on the wrong path.
Find twenty illusions.
Complete the Hidden Object Puzzle in less than a minute.
Complete the game in expert mode.
Finish the game.
Complete all Minigames without using the Skip button.
Collect all trading cards of Beatrice.
Complete all Hidden Object Puzzles without using the Hint button.
Plan your route to Notre Dame.
Complete the Hidden Object Puzzle with no more than three mistakes.
Find four objects in four seconds in a Hidden Object Puzzle.
Enter the Parisian underworld.
Complete a Minigame puzzle in less than a minute.