References without law book default to BGB.

Case - Impossibility

Facts

Mary (M) loves sailing. After inheriting EUR 100,000, she decides to invest the money in a used yacht. She meets William (W), who intends to sell his Bavaria C 57. They enter into a sale of goods contract at a price of EUR 90,000. M deposits EUR 9,000. M and W agree that M can pick up the boat next week and sail it to its mooring. The next day, however, lightning hits the boat, destroying it completely.

a) Can M demand a transfer of ownership?
b) Can W demand payment?
c) Can M get the EUR 9,000 back?

Solution