Ah.

[The only question she had was who had done it in the first place?]

Having my gun on my person gives me peace of mind as well as protection. I'm a good shot. [It's not intended as a warning to him but mainly to show that she wasn't a pushover and she would use her weapon if necessary. Despite being used to strange occurrences on board and living through them, Bela was still on edge, concerned that something else would happen, something that she wouldn't be prepared for.]

How can you tell that it's magic? Was it a guess?