Batman: Death and the Maidens

Ra's al Ghul has accused Batman of trying to murder him. Batman refuses to even acknowledge the accusation... after all, without the aid of the Lazarus Pits, Ra's would have died of old age centuries ago. Desperate to strike a bargain, Ra's offers the one thing he believes that Batman might accept... a potion that can allow a person to speak with the dead, for a time... a chance to once again see his parents. And despite Alfred's protestations, it's an offer Bruce is considering.

But it isn't long after Ra's departs that Nyssa comes knocking at the door to Wayne Manor, and an unfamiliar shadowy figure is seen moving through the Batcave.