Here goes:
Upon opening the massive wooden door, you see the 60' x 60' room beyond. The walls and ceiling are unadorned stone, typical of the sort found throughout this complex. The floor is covered by 10' x 10' multicolored panels, alternating between red, green, orange, and blue. In the center of the room there is a huge mountain of coins, at least 947,231 cp, 88,321 sp, 43,777 gp, and 12,341 pp. Sitting atop this mountain of wealth is what appears to be a giant sphynx. As you approach the center of the room the sphynx bellows loudly, " Who dares enter here must answer my riddle or face certain death!!!" After unsuccessfully trying to answer the riddle, the sphynx charges toward your group, savagely biting and clawing!