Do NOT read on if you haven't completed the Dark Brotherhood questline. I can't put the following inside a spoiler tag cos my crappy ps3 browser wont let me.

Before the DB question a general one. You know how sometimes when you are wandering about you see 3 Thalmors escorting a prisoner (you, in robes looking older), well what happens if you save the prisoner? does he got to a specific location on the map to live out his life? are there any further encounters/quests with him? my current character is a non-aggressive/non-combat one so i dont want to be fighting the Thalmor to find out.

The DB question. You know how when the sanctuary is attacked, and you find Astrid lying burnt on the floor? well, the area she is lying in looks like a secret room hidden behind the wardrobe. does anyone know if you can access this room/area by a secret entrance when you first join the DB (before the mission when the sanctuary is attacked)

Also I've heard that if you complete 25 of the radiant DB quests then you get a special bonus, anyone know what it is? Thanks.