“ The blood of a dragon is vital in the creation of potions of longevity. The liver could used to cure any disease or ailment, while the heart could restore a PC to full and complete health, despite their age, or injury.”
“ Someone needs the blood of a dragon, given willingly, to make a rare potion. Guess who gets hired to sweet-talk a dragon into giving up some highly powerful blood?”
“ A cave with weapons sunken into the walls, blades sticking out of the floor and ceiling, and so on. Possibly, any weapon used in it could be torn out of the hand and sink into the stone.”