Banefire is the fail-safe that destroys what's hidden under Demonreach island. It is first mentioned in Cold Days.


Banefire appears as a scarlet and blue light becoming a white destructive fire[1] which would kill the creatures imprisoned under Demonreach rather than allowing them to escape.[2] It was put in place by The Original Merlin should there ever be a threat jeopardizing the prison.[1]

In the seriesEdit

Cold DaysEdit

Main article: Cold Days

In Cold Days, Demonreach shows Harry, through Bob's projection, a scarlet and blue light becoming a white destructive fire destroying everything. Bob explains that a directed burst of energy unraveling the containment spell Merlin would trigger the fire called the "failsafe".[1]


  1. 1.0 1.1 1.2 Cold Days, ch. 17
  2. Cold Days, ch. 21

See alsoEdit

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