Beetlejuice noticed her getting a little freaked out, and tried to reassure her that what they were trying to do was impossible. As far as he knew. 

When it finally came time for them to leave, he took her hand and poof'd them back to the facility. BJ took on that disapproving frown again as they were faced with the gray suited man. The techs took the recorder from Lydia.

"Fantastic," the man said, "Now, if you will, put this entity back where it belongs."