"The Messenger of the Eastern Warehouse” appears in “What the Ears have Consumed”, an anthology of fantastical tales collected in 1794:
There was a beggar crone surnamed Zhou in the Su neighborhood of Jinxi[i]. Xe was a childless widow of more than 50 years of age, living alone in a dilapidated house. One day, a disembodied voice spoke next to xir ear, “Your situation is indeed pitiful. I will help you...