In my complete inability to find the blue thing, I've considered confronting Stacy again. Unfortunately, I've yet to see her again. Her car has been gone every time I try to go over.
So, one of the worst ideas I think I've ever had came to mind: going inside the house while she's gone. It's only been a few months since Adam died, so surely his things are still there, in which case I might be able to find something. Maybe even that book. Hell, with everything that's been going on, Stacy is probably hiding something too.
Don't know when I'll go.