To summon and dispatch a Demon
Since it was discovered that the residue of a summoned demon is required for exploding powder, the search has been on. With a specially constructed scroll the adventurers set out to a location where by large magic the separation between planes had been weakened. The impact site of the large starstone was chosen as the most likely site. Without too much trouble the site was reached and prepared. A demon and some underlings were summoned, immediately attacked and after a fierce fight dispatched. The collected residue was returned to the guild.