Tevariel would note a few things. Some of the tiles had groves on them and looked lookse. Probably pressure plates. She would also note a few grooves in the ceiling near the gate where they could easily reach down and possibly skewer someone if they had a sharp blade. So the gate was trapped however the sarcophagus surprisingly didn't seem trapped. in face one of them seemed a bit less dusty then most. As she moved towards the right lever she hesitated for the moment seeing there was no real mechanisim for the gate to be opened. So how could the lever work if there was no way to open the gate with it?