The men around you continue to hold your ground, and you refuse to shame yourself by backing away. The pile of dead lizards in front of you continues to grow. You imagine yourself building of wall of dead lizards to block them out, and keep them from advancing further into the city.
But the battle takes more than a few minutes, and after a while your adrenaline starts to turn against you. Your muscles grow sore and the lizards don't stop coming at you. You can slowly see men around you starting to fall as the lizards overwhelm them. In at least a few places they've broken through and are starting to pour into the city.
Then, a large, dead and swollen lizard rolls over next to you. The men around you scream and run, but you are more confused and curious than anything else. Not knowing what else to do, you poke it with your spear.
The shockwave as the vast pocket of methane gas inside the creature ignites is enough to blow you back a solid twenty feet. You hit against a stone wall and crumple down, unable to move your limbs. It takes a few moments to realize what happened, and a few moments more to realize that you won't be getting back up again. Your vision is blurry, but you can barely make out the form of a lizard charging toward you.
The End.