Bracing your spear, you charge down the path and join the fray. Originally you planned to hold back and kill any lizards that broke through and hopefully would already be injured, but that's not how things are working. Lizards pour through the tunnel opening like water from a fire hose. They aren't even trying to strategize, simply overwhelm the guard force. You take a position and the lizards come at you.
In less than a minute, there are already several dead lizards at your feet, but more and more continue to pour from the tunnel entrance. You find yourself herding them, more than killing them as you push forward and try to guide lizards into the spears of other men nearby.
The air in the room suddenly changes, and, without looking up, you know that the Big One has appeared.
It is standing at the entrance of the tunnel, its presence effectively corking the onslaught of the smaller lizards, who know wriggle past at more of trickle. You realize that you've been pushing forward against the tide of the lizards, and now are closer to the Big One than anyone else. It is about fifteen feet from you, and staring at you intently.