S1·E10 A Voice from the Past

Autumn 1908: While providing food for the homeless, James and Elizabeth are surprised to run into Sarah whose been living on the street. Elizabeth insists upon taking her back to Eaton Place where she's given a job as a scullery maid. Sarah immediately reverts to her old tricks and, claiming to be a medium, causes an uproar when she tries to conjure up the spirit of Emily during a séance.