Local folklore goes that the girl was the daughter of a coffee plantation manager who lived near the present temple site in the early 20th century. At the end of World War I, British soldiers rushed in to intern her parents but she was said to have escaped through the back door. In her haste, she fell into a quarry behind the coffee complex, stumbling to her death. Her corpse was discovered by Boyanese plantation labourers, who threw sand over her body and offered prayers, flowers and incense as a gesture of goodwill each time they passed her. Eventually, a group of Chinese workers on the island carted her remains to the crest of the quarry's hill and gave her a proper burial after repeatedly seeing her ghost. In 1974, the grave was exhumed  to make way for quarry excavation work and her remains was stored in an urn and relocated to its present spot. Today, the supposed urn - a heavy white jar decked with tattered scarves - sits upright on a dust-caked altar strewn with a battleforce of eerie feminine tributes: hair brushes, nail polish, powder, Safflower Oil, Florida Water, Hazeline Snow and the odd tube of Revlon lipstick. For all the fuss over the urn and remains, many believe it is actually only a replica of the original 1974 pot, which is believe to have been stolen by vandals simply for its beautiful Jiangsu design.

The mystery has not only intrigued him but also caught on with two curious filmmakers. Ho Choon Hiong, 28, and Michael Kam, 34, stumbled across the temple while making a documentary on Pulau Ubin's nine temples and 11 shrines in 2000. They have done the extra legwork of tracking down the former coffee plantation's 19th-century land deeds to a certain Daniel Brandt and Hermann Muhlingans of Germany.  But beyond these two names, they have failed to unearth further information on the supposed girl or her parents. Further enquiries with the German Club and other sister organisations here have drawn a blank. Today the shrine has become a popular pilgrimage for many, especially gamblers.