The siege engines launching these boulders seemed to have poor accuracy; many of the stones smashed into the city instead of hitting the walls. This didn't quite fit with the strict impression Demons usually made on people, and it was likely because these siege engines were hastily assembled.
Then the question arose, where to find the materials to build these siege engines?
"Old Reap, aside from that forest to the south of the city, are there any other woods nearby?"
"No, this plane has a severe allergy to most plants," the Werewolf shrugged his shoulders, "Why do you ask?"
"I was wondering where these stone-launching devices were made." Lancelot pointed upwards as a burning Fireball flew about fifty feet above their heads and smashed a stone tower nearby to rubble.