The nutritious fruit of this plant is not unlike a star fruit, with fleshy spindles sticking out in all directions. The leaves, on the other hand, are highly dangerous and have driven many a hungry traveller mad!
The player characters, experienced and somewhat well known, hear rumors and travelers' tales about a distant area being overrun by dragons (or other terrifying monstrosities). The locals have sent them a message, begging for heroic aid.
When they investigate, they discover that nothing of the sort is going on. It turns out that a group of thieves wanted them out of the way so that they could rob them (or someone who would normally receive their protection).