Here is the full list of all 13 Faces of Illusion: The Twin Phantoms achievements.
Find twenty illusions.
Collect all trading cards of Beatrice.
Find four objects in four seconds in a Hidden Object Puzzle.
Finish the game.
Complete the game in expert mode.
Complete all Minigames without using the Skip button.
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.
Complete the Hidden Object Puzzle in less than a minute.
Find the mansion without stepping on the wrong path.
Enter the Parisian underworld.
Complete a Minigame puzzle in less than a minute.