She's quiet for a moment. "They wouldn't rig any explosives this deep, and certainly not in something connected to ammo storage. If the door is a trap, it's covering stakes. If it's covering a room...We move the door and there's any light, doubtful they'd waste a lantern on a stake pit. Of course, it's doubtful they'd waste light on an empty room, too."

She sets her jaw. "If wee find light, we'll have to be fast. Grab my ankles--I'll go through from the waist up. I can sweep the room and you can get me out if the shit hits the fan."

Damn Viet Cong engineers and their need to put doors in the floor.