# How many tokens do the survivors require in The Séance in Betrayal at House on the Hill?

We have been confused by some phrasing in the "How to Summon the Ghost" section in the Secrets of Survival booklet for haunt 2, "The Scéance", in Betrayal at House on the Hill (2e). Emphasized below:

Each hero can attempt a Knowledge roll or Sanity roll of 5+ to conduct a séance. An explorer can attempt either one of these rolls during his or her turn, but only while that character is in the Pentagram Chamber.

Each time one of these rolls succeeds, put a Knowledge Roll or Sanity Roll token (as appropriate) in the room where the haunt was revealed. When the heroes have a number of those tokens equal to half the number of players (round down), they've completed the séance.

My first inclination is to interpret this as

When the players have a number of tokens (each of which may be Knowledge or Sanity) equal to half the number of players (round down), they've completed the séance.".

but it seems like it could also mean this:

When the players have a number of Knowledge tokens and a number of Sanity tokens both equal to half the number of players (round down), they've completed the séance.".

This is further confused by the "Right Now" section of the rules, which instruct us to:

Set aside a number of Knowledge Roll tokens (triangular) equal to the number of players. Set aside an equal number of Sanity Roll tokens (triangular)

How could we ever need a number of either token equal to the number of players? Shouldn't it ask us for the a number of tokens "equal to half the number of players (round down)"? The location of tokens doesn't matter, so as soon as players have aquired the required number there's no reason they'd collect any more.

After the game we checked the Traitor's Tome, but it didn't help:

We thought there might be some way for the traitor to remove or manipulate tokens so that the extras were neccessary but it didn't mention the tokens at all.

How many of which tokens do the survivors require to summon the ghost?

• There are two short threads about this on BoardGameGeek: #841127, #622488. They think it means the total number of tokens, but don't explain why you are asked to set aside so many. Jan 2, 2013 at 0:41
• The only thing I can think of is that setting aside only half the tokens would give the traitor player a better idea of how many successes were needed (if they had never played the scenario before) Mar 9, 2013 at 20:57