Le mystère est terminé, mais pas les économies. Découvrez nos fleurs et cadeaux en rabais pour un temps limité.

For the product badges, good French options would be RABAIS MYSTÈRE, RABAIS DÉBLOQUÉ, PRIX MYSTÈRE, or simply EN SOLDE.

My preference for the landing page would be “Vente mystère — Le secret est dévoilé” because it connects directly to the mystery concept from the email while making it immediately clear that the customer has reached the reveal.