Enrapture

First you must get the bead on to the persons. Then you may cast the spell. They spell EITHER makes someone charmed with the person with the black bead. (wisdom save DC of 17) OR makes them intensely curious, and thinks of nothing else besides that person/thing for the duration. While curious, they examine the target and do nothing else unless there is obvious danger or direct orders, but they will be done reluctantly. Curious people are either asking questions, or if this isn't possible, will continue to make investigation checks on them.