Epic magic that has filled the ruins of Vorsand with deadly, semi-sentient metal plants
1655
"The city itself had vanished; in its place the metal branches, creepers and saw-edged leaves of the iron jungle filled the valley from side to side."
"Lynien stroked the cat, and then gently urged it into the jungle in order to see what would happen. The animal wormed its way throught the growths, finding it hard to fit; a 'leaf' cut it at one point, drawing a little blood. A moment later, the whole area around it convulsed, driving multiple stems and leaves through and through the unfortunate animal's body. Every drop of blood in the cat's frame gushed out in one gout, spattering into the ash and being absorbed effortlessly by it. The cat itself didn't even have time to twitch or cry; its' spindled corpse hung motionless in the mesh, unable to fall. All three adventurers stepped back involuntarily..."