Will-O'-The-Wisps

Will-O'-The-Wisps are a mythical species appearing in The Menagerie trilogy.

Description
Will-O'-The-Wisps, also known as elf-fire, are small, tennis-ball-sized flying creatures that resemble balls of fire. They can be multiple colors, including blue. They have the ability to hypnotize people into getting lost in forests. Scarabs can protect the wearers from will-o'-the-wisps by preventing them from being hypnotized.

Dragon on Trial
Brigid Strong (Delia Dantes) briefly mentions that people who claim to have been abducted by aliens usually have a real run-in with a tooth fairy or will-o'-the-wisp.

Krakens and Lies
Zoe Kahn and Logan Wilde meet the Wyoming Menagerie's will-o'-the-wisps in the Dark Forest while investigating to see if Jackson Wilde has been breaking in.

Known Will-O'-The-Wisps

 * Wyoming Menagerie Will-O'-The-Wisps (Fourteen)

Trivia

 * Will-o'-the-wisps are one of the only creatures not described in Camp Underpaw's Guide to Mythical Creatures, along with barangs, bunyips, elves, enormous talking cockroaches, grindylows, monster spiders, tooth faeries, and vampires.
 * Despite also being called elf-fire, they are not created or associated with elves in any way. Zoe notes that this offends elves.