I'm preparing campaign for my friends. It's first time for all of us and I want to create a big bang at the beginning. My players are a high elf, a wood elf and a tiefling.
They will start in quite a big village, where everything is fine, crops are plenty etc. I need a way to introduce the elves to each other, have a plan for the tiefling and make them do quest or two together.
In the end I want the whole village destroyed by demons, summoned by the magic item they find in the dungeon nearby, but I have no idea how to introduce something that important to my plot in such place. I want it to be a part of bigger artifact used to summon a demon god, which they have to stop in the endgame.
How should I introduce the item? Is it too much for the first session? Thanks for the answers.