>>309735210
Find the ghost room ASAP. When the ghost starts a hunt, it will more often than not begin the hunt inside / near their favorite room. As long as you're not in a bad position when it starts you'll be able to outrun the ghost (unless it's a revenant, if this fucker spots you in a long hallway you are super fucked.)
When in doubt, light a smudge stick mid-hunt. If it is lit within 6m of the ghost, it will stop it in its tracks for about 5 seconds.