After a moment of Mary's concentration, the whirring of of the Sonic Screwdriver was interrupted by a click as the lock's mechanism was released. The drawer slowly slid open on its own, the green marble in question rolling into view.

However... something else was released as well. With a soft hiss, a light pink gas began pouring from the keyhole. Further examination of the inside of the drawer would reveal a series of tubes and wires connecting vials of liquid up to the inside of the lock. It would appear that the correct key inserted into the lock would have blocked the circuit, but releasing the lock alone triggered the true trap.

Reno had been in the process of reaching triumphantly for the materia when he noticed. "Oh shit..."