Hillary saw the case as a child advocate and a parent: she backed our decision to reunite the boy and his father.

Not to be devoured whole by one person -- although some extreme mooncake lovers do -- the experience of sharing a mooncake is part of the Midautumn tuan yuan, or family reunion, spirit.

Chinese people believe that on that day, the moon will be the biggest, roundest and brightest, and the term "round" implies family reunion in Chinese.

With the full moon symbolizing family reunion in Chinese tradition, moon worship has been one of the must do's during the festival.

The reunion was brief and Fulcanelli once again disappeared leaving no trace of his whereabouts.