Mystery Letter Q sender Diego Garcia Anon. Watch the water.

This is one of the strangest things that has ever happened to me, I made all my friends who know my address swear to me if they did this, they all swore to God no. This letter with a wax Q seal showed up in my drive way, if this is a follower it’s not funny to leave at my house, this is very concerning and strange, the coordinates that were sent was to Diego island. I need answers.