In Haunt 71, how does the traitor steal an item if they can only attack with Knowledge and Sanity?

Question

Accepted Answer

Stealing is covered by the traitor's Special Attack Rules in the Traitor's Tome: when you defeat a Ghost, you may take one of its items. It does not depend on a Might or Speed attack.

Betrayal at House on the Hill (First Edition)

In Haunt 71, how does the traitor steal an item if they can only attack with Knowledge and Sanity?

Betrayal at House on the Hill (First Edition)

In Haunt 71, how does the traitor steal an item if they can only attack with Knowledge and Sanity?