Idea inspired from pokemon creature types
In the land of Epoa, Cloud Hoppers are some of the craziest people you’ll meet. Cloud Hopping is their job.
Welcome, Gentlemen. I’ll be brief about this. As you already know, as of 07:12 yesterday, we are at war with the bloody granola eaters of West Sylvania. I’m here to tell you how these elves fight.
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).