He certainly isn't going to verbally answer that but Bakura knows very well that someone properly motivated will do things they'd consider themselves above in other situations. So he says nothing and follows the necromancer, watching him stride through the portal without hesitation. Bakura follows a moment later, immediately casting his gaze around as he finds himself in a new room? place? dimension? as though expecting something to leap out and attack them.

"The setting is a little cliche..."