one irish cook who worked in the house off and on from 1895 to 1902 told one of our investigators casually that mary beth told her there were all kinds of spirits in the world , but the lowly spirits were the easiest to command , and anybody could call them up if such a person had a mind to mary beth had spirits guarding all the rooms of the house and all the things in them but mary beth warned the cook not to try to call spirits on her own it had its dangers and was best left to people who could see spirits and feel them the way that mary beth could .