What is "fetch candle"

Fetch \Fetch\, n.

1. A stratagem by which a thing is indirectly brought to pass, or by which one thing seems intended and another is done; a trick; an artifice.

   Every little fetch of wit and criticism.
   --South.

2. The apparation of a living person; a wraith.

   The very fetch and ghost of Mrs. Gamp.
   --Dickens.

3. The unobstructed region of the ocean over which the wind blows to generate waves.

4. Hence: The length of such a region.

   Fetch candle, a light seen at night, superstitiously believed to portend a person's death.

n. A light seen at night, superstitiously believed to portend a person's death.