A French-language instructional book on contract bridge, centered on the recurring problem of locating or concealing the queen during play. The title points to a practical bridge challenge: judging where a key card is likely to be, how to draw it out, and when to disguise its position from opponents. Baroghel’s approach is practical rather than theoretical, using bridge situations to explain technique, inference, and card management. The work is aimed at players who want to sharpen their tactical decisions at the table, especially in positions where the queen’s placement can determine the outcome of a hand. It functions as a focused study guide for bridge players seeking clearer declarer play and stronger defensive judgment.