Aliens: Nightmare Asylum, written by Steve Perry, is a 1993 novelization of the second Aliens comic book series. Nightmare Asylum is the second novel in the "Book" trilogy, preceded by Earth Hive and concluding with The Female War.
Wilks, Billie, and Bueller were the last survivors of a devastating assault on the aliens' home planet. But their return to the solar system made them refugees once more, fleeing Earth and its alien infestation in a desperate attempt to stay alive. Now in an otherwise unmanned military transport, they hurtle through space. Destination: Unknown.
Little do they know the cargo they carry with them is a legacy of death that they will ultimately have to face. Nor do they know they head toward a remote colony and military outpost. This pocket of humanity at the very edges of space is at the mercy of a general named Spears with an agenda all his own. Now Billie, Wilks, and Bueller face a new nightmare, and it is nothing they could ever have imagined: a gift of madness from an alien world, an unbalanced mind and the experiences of a mysterious pilot named Lieutenant Ellen Ripley.