The Sundar family name was one spoken with honor and reverence. None were ever spoke ill of, and should a question arise of their honor and integrity it was quickly set right by those who knew them. Now they are a fallen noble family of disgraced knights who are fearless, emotionless, and uncaring for anything other than own survival and vengence.
The Pcs discover an ancient, dusty oil lamp, somewhere in the bowels of a dungeon. Naturally they "rub it", and out pops a wizened, old djinn. So far so good. Then it speaks...
"Ah at last, at last I am free! Now grant me my wish!"
When the PCs explain that they are the ones that should be granted a wish, the malignant djinn explains to them that his particular oil-lamp has a curse placed upon it. Whomsoever releases the entity inside shall be geased to grant the djinn's wish to the best of their ability.
Groans ensue from the party. The djinn rubs his wrinkled hands, grins, and proceeds to name his wish. What could it be?