Re: Amazing house hunt!
obvious ones
floor boards,door molding,stairs,hollow banister (

) dead void behind cabnits also behind the stairs
When searching floors, walls, or ceilings with an instrument, carefully cover every inch of the area just as you would a yard or other area. Remember what I said about doing it as you'd mow your lawn. The fellow who hid the treasure was trying to outsmart fellows like you, so he did his best to hide it where you couldn't find it.
Don't follow tile joists, beams, or studs on your first pass. Go at right angles to them. For example, if you are searching a wall, make your passes horizontal rather than up-and-down.
For floors and ceilings, you can easily determine which way the joists run by following the indication of the nails. You'll get a constant indication as you follow a joist due to the nails, so when you have determined the direction of the joints, make your search in passes at right angles to the joints. Now, note this and remember it, as you pass over each joist you will usually get an indication from the nails and you can ignore these indications, but when you get a considerably greater indication, TAKE HEED. Something is on the other side that is not kosher. However, don't expect riches every time.