Open one of the boxes
From Create Your Own Story
The box is not locked and opens easily enough. It turns out that it is indeed a coffin. Inside, a half-rotten corpse stares up at you with unblinking white eyes. The stench is horrible. You stagger backwards, feeling sick. You look at the other boxes and decide not to open them, because you can already guess what they contain. You also suspect that similar coffins can be found in many other rooms.
A ship named after a vampire's castle, in which there are no sailors but dozens of rotting corpses... What is this madness? Something from your lost memory emerges: you remember tales of undead pirates ravaging the coasts of the Old World. Is this what you are dealing with?
You can now either try to leave this ship or get out of this room to continue your exploration.