15 letters: You've always said I would die first. Well, guess what?

A short story of love and death — captured in emails. It's about two siblings who cared for each another a lot, growing up. But then life happened, priorities shifted. The sister got married, the brother moved out of the country. They've stayed in touch, but it wasn't the same any more. Inside are the last letters she has received from him, including the one sent after he died.