Explore Your Passions By Mail.
Add a dose of excitement to your mailbox trips with historic letters, interactive mysteries, and more.
Mail Made For You.
Whether you're an artist, a historian, or an amateur sleuth, we have something fun and surprising for you to receive by mail.
For Historians
Get one interesting historic letter mailed to your door each week. Explore history through the words of those who lived it.
Each letter also includes a “postscript” written by our researchers with helpful background information on your latest letter.
For Sleuths
Use weekly clue letters to help Sherlock Holmes solve monthly mysteries.
Solve murders, thefts, and more, and compete with detectives from around the world for the coveted title of Featured Detective.
For Stoics
Get one letter every week on parchment from Seneca the Younger.
Explore stoicism and the Moral Letters to Lucilius gradually, as Seneca himself suggests.