Secret Rooms Mod 1.7.2/1.6.4/1.6.2/1.5.2

Secret Rooms mod adds a range of cool blocks that camouflage themselves to the encircling world. All of those blocks have extraordinarily useful functions that enable you to easily hide your diamonds, or penalise all who dare attempt to get to them. Hidden doors, pressure plates, hidden levers...
Secret Rooms Mod 1.7.2/1.6.4/1.6.2/1.5.2 - http://www.8minecraft.org/secret-rooms-mod/