In Siegehorn Valley, a colonial supply corridor and logistics hub are disappearing beneath calcified living shell after the siege line collapses. Three soldiers enter the alkalized dead zone to recover a data-core and reach the extraction pad before the evacuation barges lift.

At the buried bunker, they use a plasma cutter to breach a hatch that heals behind the blade. The Siegehorns absorb roads and buildings into their bodies, seal men inside human infrastructure, and turn drainage pipes into narrowing stone throats that crush whatever remains within them.

This is "Siegehorn Valley" by Sascha Schmidt