We Know (Note)

Location
After killing Grelod the Kind for Aventus Aretino, a courier brings this note to the Player.

Note that after receiving the note, the next time the player sleeps, they will be taken to the Abandoned Shack by Astrid.

Also the note does not have to arrive to get kidnapped by Astrid, if you do this, the note no longer becomes available.

Content
We Know



Trivia

 * Bethesda sells a t-shirt and a sweater with this note's content.