The first involves the purchase of a new dress, and the second involves borrowing the jewelry she feels is needed to accompany it. It is only after she has borrowed the diamond necklace from Madame Forestier that she feels she can make a suitable appearance at the ball.
Answer:
Because it is a clue that is meant to send whoever found it on a wild goose chase. Example: If someone was looking for a red apple, and I left a note that said Someone else took the apple but i really had it. Weak example but thats what i got.
Explanation:
Because it has something covering it and he has to watch his back
