[Dark Wilderness]

The wilderness a few miles from the Lab has been tainted. The squads and vehicles that approach won't notice much amiss at first, though Larukh and his psyker minions may begin to feel a strange unease or wrongness. The lingering taint of Warp influence, no doubt. Entering the woods, they will begin to spot the occasional discrepancy. A single blue flower among a throng of red blossoms. An apple growing on a pecan tree. A tree split down the middle, with either side flourishing into a perfectly symmetrical copy of itself.

As they advance further into the woods, a fog begins to form, and the strange itch of Warp-taint becomes more noticeable in the psykers and sorcerers in the strike team.

The fog grows thicker. The trees they pass become more gnarled. Some are barren, bereft of all their foliage.

Some of the trees are bleeding.

Further into the forest, the fog is thicker, and the trees are thinner. Soon... there are no trees. Only blasted stumps, and pillars of ash, which crumble into nothingness and faint whispers on the wind as the soldiers and scouts pass them.

The sense of wrongness grows stronger, until even the mortals and those not touched by the Warp can begin to feel its icy caress down their spine, though surely the strike teams are hardened and trained enough to not give in to their paranoia and unease... right?