Here is another installment of exTRAPaganza, our Thursday over-the-top trap series.
It is as quiet as a library here. For this entire area, sounds are amplified and echoed. Any noise that is made, such roughly opening a door, the sound of steel striking armor, talking louder than soft speech, etc, is amplified and echoes several times. Each time such a noise is made, all targets in the area must make a Will save or be nauseated for 1d4+1 rounds.