In the small town of Silver Oak rests a towering Oak flush with silver metallic leaves that chime in the breeze, even during the heart of winter. Its story, and its secrets lie within this humble text...
A magical tree, suitable for any fantasy campaign.
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.)