you simply go in.. upstairs and check out the sand pile.. same at the saloon

On Buried by the Mob, you need to investigate: The Pawn Shop and The Saloon. In the Pawn
Shop go upstairs and then a little box pops up saying that you have found a pile of sand.
In the Saloon, you just got to the left wall.

In Blackout!: You need to investigate the warehouse. Just go to the ware house (other end
of the desert that's got the Ziggurat in it) Then the combintation to got into it is:
Middle, Left, Right.



Hope these helped. :)