Unkindness of Ravens
Your party has been on the road for what feels like forever. Everyone is overly tired, footsore and unhappy with the journey. Could it get any worse? Why, yes it can. The clouds have been darkening for hours and how you are caught in a torrential downpour that has everyone soaked to the skin and shivering in their wet clothes.
A large flash of lightning reveals a decent sized castle on a hill a few miles away - possible the only refuge that you might find in this storm. Hopefully the owner will take pity on your group and allow you to spend a few hours inside where it is warm and dry.
This game is based on the the Unkindness of Ravens adventure that was published in dungeon magazine, modified a bit to work BECMI ( and their clones ) rules.
