Willow Wisp

Shhh-step quietly- there are faeries abound!----In urban legends, folklore, and superstition, wills-o'-the-wisp are typically attributed to ghosts, fairies, or elemental spirits. Modern science explains the light aspect as a natural phenomenon such as bioluminescence or chemiluminescence, caused by the oxidation of phosphine (PH3), diphosphine (P2H4), and methane (CH4) produced by organic decay.