Abstract: The invention comprises a greeting card having first and second hingedly connected sheets with indicia thereon in conventional format, with the addition of a third hinged sheet juxtaposed with the second sheet and in sealed relationship thereto. The third sheet is sealed to the second sheet around their free edges, and contains further indicia which is not normally visible, and is revealed only by irreversibly destroying the integrity of the seal between the second and third sheets. In another embodiment of the invention, the third sheet is detachably attached to the second sheet so that it may be detached and affixed repetitively.