Ken: I'll go with a slightly modified "short madness" table. Are you familiar with the madness rules of D&D next? I'll use the track of the Out of the Abyss BTW (i.e. if you fail another horror save soon, it will be longer).
It'll be the table on page 259 without the effects of 41-80. I.e. it's 1d6.
Vorj's horror save:
[dice]0[/dice] "The character becomes frightened and must use his or her action and movement each round to flee from the source of the fear."
duration (1d10 mins seems too much in this case, we will go with 1d6+4 rounds):
[dice]1[/dice] rounds + 4 rounds

Sorry buddy. That's 1 minute that Vorj will spend running and screaming (you have the frightened condition). Since this is worse than a fear effect... you won't stop running once you can't see the spirit, I'll allow a save to stop running at each
floor, if the ghost isn't hunting you through the corridors.