Not what it seems
A rumor is heard of a palace where monsters were holding hundreds of kobolds as slaves. A large castle filled with treasure, all the kobolds that were seen going in and out wearing a silver, blue, and gold woven neckbands. Almost all the doors to the various servant areas were sized for the kololds as well. Along the road outside the castle, the graves of failed raiders where, instead of gravestones, their skulls still sat upon the spikes where the heads once had been.
Yet, it was not what it seemed. For the adventurer that found their way inside, these beings did NOT want to leave the palace. There were beautiful gardens, and lovely fountains. For all they were required to wear the neck bands, they were clean, looked well-fed, and those that had injuries, those injuries were neatly bandaged and tended to. But the surprise was in the throne room. Two humans, two kobolds, sitting side by side talking as they sat on small thrones.