Survivors
It didn't take long for Ryan to see that some survivors were guarding the walls that were protecting some parts of Las Vegas. It became clear since Ryan saw some monsters scratching the walls, and eventually, they would fall dead. At the same time, the people on the walls also noticed his approach since his Flame Arrows were leaving a trail of corpses behind.
"I guess it is time to increase my luck again. As of late, I am only getting crappy items, and tomes are scarce considering the number of monsters I killed."
As one would expect, a good part of Las Vegas had been destroyed by dragons. The massive buildings had become piles of rubble that also now served as a defensive barrier like the walls. Although some small buildings had been left alone by them, the other monsters attacked and destroyed those.