MarkB
Legend
Ghosts' Horrifying Visage can seriously reduce a character's life expectancy if they fail their save and are unlucky on the d4 roll. An extra 40 years of age if you're playing a human or half-orc who's already at the 'grizzled veteran' end of the spectrum will put you well into the pensioner bracket - permanently if you're more than 24 hours away from a spellcaster capable of casting greater restoration. Multiple ghosts in short succession could easily be fatal, and since it's technically death due to extreme old age, you're out of luck for resurrection at any level.