Leave Beautifully

Money does not guarantee the absence of problems. Quite the opposite. The investigator advised me to be cautious. My brother was killed, the murder was obviously contracted, and the goal is to pocket someone else's goods. I am the sole heiress, which means I am the only obstacle to the realization of someone's plans. An obstacle easily removed by people who do not shy away from anything. What should I do? Either leave, hide in a burrow, flinching at every rustle, or... try to figure out what is happening...