@HOOfan_1 Never said murder. "To burn" does include murder if you take it literally, but the meaning runs the gambit between murder and making fun of. What she needs to do is make them pay, the best way would be to denounce them, take them to court and seize all their holdings for kidnapping, inflicting bodily harm (by drugging them), attempted murder (for ditching them on an island without resources to make sure they survive. This is easy to argue with a good lawyer even if they didn't properly attempt it), forcing them to marry (Which happened while they were unconscious, which is a crime) and more.
Also, I would not in a million god damn years trust anyone that was in on any of this and would for sure at least fire the entire staff.