Lynda served her infernal masters for years in preparation for the coming apocalypse. They promised her power, and in return she helped rot civilization from within. When the time came, and the infernals took their great prize from humanity…they completely forgot about Lynda.
Alone and with nothing to show for all her hard work, Lynda immediately traveled to all the old ritual sites she knew of and stole every magic relic and talisman of power she could find. If the infernals weren’t going to keep up their end of the bargain, she’d just rob them blind of what was left.
The infernals, of course, do not care at all. Lynda now wanders the wastes, laden with satchels brimming with arcane items, trading and selling them as she needs to in order to survive. When she gets into trouble, she still knows a few infernal tricks to help keep her safe, but more often than not she’d rather talk her way out of a sticky situation with a few proffered trinkets.