Incarnation

From publisher blurb:

When the PCs accept a job transporting an attorney to a meeting with a local noble, an approaching radioactive dust storm is the least of the dangers they face. Their destination, an opulent but neglected mansion presided over by a reclusive Countess and her loyal servant, holds within madness, torture, and deadly secrets kept for decades. Prevented from leaving by the raging radstorm, the heroes may find that all their skills and experience might be useless against a weapon even they weren’t prepared for.

Incarnation is a short adventure for 2D6 science fiction RPGs such as Cepheus Engine and the Original Science Fiction Roleplaying Game (OSFRPG.)