In Haunt 22, what does the Turn/Damage track count, and when does the house start collapsing?

Question

Accepted Answer

Most posters say it counts the traitor's completed turns, not the round number: it is set to 1 at the end of the traitor's first turn, when the house starts collapsing, and advances at the end of each later traitor turn. This is contested, since the haunt text never says exactly when to set it.

Betrayal at House on the Hill (First Edition)

In Haunt 22, what does the Turn/Damage track count, and when does the house start collapsing?

Betrayal at House on the Hill (First Edition)

In Haunt 22, what does the Turn/Damage track count, and when does the house start collapsing?