Hermione stilled her whirring mind and crossed back to Luna. The basin she'd been washing in was part of a beautifully ornate dresser, oak and glass and trimmed with gold. It had clearly been magically modified; the central compartment held a workshop's worth of spindly equipment, and the top drawer was teeming with potion vials. But this wasn't what had caught Luna's eye. She directed Hermione's attention to a spot just to the right of the enamel basin.