So this guy's in the Thieves' Guild, possibly the Grey Fox. Do I stalk him and see if I can join the Guild through him, or give the local Captain in town this book to see what he says? What about that other quest? Maybe that guy finally left his house. Where can I sell these stolen goods? Should I forget all of this and go traveling? Or warp to the town that continues the main quest? What about the arena? Who are the Dark Brotherhood?