Ok, since this is a general RPG dump area for advice, i present my top five favorite Adventure hooks for DND to get players to do an adventure. in no particular order
1: They wake up to find that their hair and boots have been removed in the night.
2: The Innkeeper and other townsfolk have been entirely replaced by different people overnight.
3: A wizard asks them to find his "Pleasure Golem"
4: A kindly NPC they like and have developed with no longer knows them
5: When in doubt, bring in Kidnappings and Drow.