Whom does Ann Putnam seek out to help her "speak to the dead"?

Parris confirms that he, too, suspects witchcraft and has invited Reverend Hale from nearby Beverly, an expert in such matters, to deal with the problem. Ann admits that she sent Ruth to engage Tituba, who knows how to speak to the dead, to raise the spirits of her seven dead children, all of whom had died in infancy.

he will find out what went wrong or happened and how.