Grendel: War Child #6 (1993)

Even as Laurel Kennedy and Heath preside over the official mourning of the heir to the Khan, young Jupiter Assante and his captor are indeed alive and, well... on the run. Beneath a strangely deserted and overgrown castle, Grendel and Jupiter are set upon by a group of mutated casualties of the nuclear winter, a group carrying a decided grudge against manipulators of modern technology. A mysterious band of soldiers arrives in time to add another surprising twist to the story. For our heroes, it's a case of out of the frying pan and into the fires of the "Devil in Hell"!