Book 1

Strange Invaders

by Rodman Philbrick and Lynn Harnett

Published 24 January 1997
Nick and his twin sister Jessie both saw the strange glow hovering over Harley Hills. Suddenly their lives are transformed. All the adults are acting like robots and the horror begins.

Book 2

Things

by Rodman Philbrick and Lynn Harnett

Published 1 August 1997
The only way for Nick, Jessie, and Frasier to fight the aliens is to track down the source of their energy. But when Jessie is captured, the boys must fight a tentacled alien in a slimy ancient cave to save her.

Book 3

Brain Stealers

by Rodman Philbrick and Lynn Harnett

Published 1 September 1997
In this final battle between Aliens and humans, Nick, Jessie, and Frasier attempt to defeat the brain stealers and prevent the earth from falling under their domination.