A stern matron, 1950's pinup and failed protector against nuclear winter.
Her first contact will be on a laptop or mobile unit of some kind. The text "Can you help me?" will be written all over the screen.
Ms. Carlyle has made her presence known.
In the ramshackle town of Spear Malice only a single building still stands. It has defied the Great War and its spears of light; nuclear blasts that devastated the entire state, and ever since then it has defied the onslaught of time.
Its halls have not yet been breached, and a wealth of technological treasure await, ripe for plunder! But there are others who crave this treasure; others that will do anything to claim it.
You find a patch of edible funghi. They taste well and all, no ill effects. UNLESS you consume some beverage, even 3 (three) days after eating it. Then you become really sick with pains, vomiting, all the fancy stuff. As a gift or good meal, it could be a cruel joke or to make sure the heroes spend their time focused on the mission. And the fine soup you had in the inn yesterday could have some in.
(Inspired through a real-world fungus. Was really used to cure alcoholism.)