It lists all the black chests and when they will respawn in the game or if they don't respawn, ect. So far, I haven't gotten anything except Fre's ring that I didn't already have, and that was from the genie lamp, so doesn't really count. I'm not sure if the way the game is was changed since that post was made, but it doesn't seem 100% right so far, but it's been a helpful guide to me. Anyway, happy gaming everyone! = )