The second step, after Innocence Lost, is to complete the quest "With Friends Like These" to join the Dark Brotherhood. You can start this quest after you have recieved a letter from a courier that has a black hand on it with "We know" written under it.<br /><br />After you have received this letter you have to find a bed and sleep in it. I think that it doesn't matter for how long, but I chose to sleep for 24 hours. You instantly load into the hutt in which the joining begins.<br /><br />Which Prisoner Should You Kill?<br /><br />Astrid will ask you to kill one of the three prisoners behind you, but she doesn't tell you who. The easiest solution is to kill them all, which is what I did. You can talk to them to get an idea of whom to kill, but I really couldn't be asked to spend time for the right thing to do so I executed everyone. <br /><br />Finding the Dark Brotherhood Sanctuary<br /><br />After you have left the hut you can go to the Dark Brotherhood Sanctuary. It is west of Falkreath.<br /><br />The password is "Silence, my brother."
