Evelynn was a state mage Alison really looked up to… before Evelynn was revealed to be a Firebird insurgent. Never meet your heroes!
Harlequins are Byrgenwick’s undead labour force. They come in a variety of forms for different purposes. Of course, once the Firebirds figured out how to hijack the Harlequins, they all took on a singular purpose: kill everyone who isn’t a Firebird.