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