Three Musketeers Secret Constance’s Mission. Experience the classic tale of the Three Musketeers from Constance’s eyes. As she works as a secret agent for the queen in Three Musketeers Secrets: Constance’s Mission! Help Constance as she not only inspires Gascony with her love, but takes on danger and saves the lives of the queen and D’Artagnan. Explore gorgeous scenes and live through an incredible tale in Three Musketeers Secrets: Constance’s Mission! This game is one of the hidden object games. Enjoy and have fun in playing this hidden object game.