In the end, they’d decided to open it up, pour it in, and watch with hopeful faces. Hope soon turned to sour blankness when it became clear that this too was a dead end. A false trail. No more helpful than if they had decided to give the damned thing a bath. They left the Locket behind not much longer after that escapade, too worried to keep it around when Hermione suddenly found she could hold lively conversations with the snakes flitting about the woods.