The book opens with Kyle threatening Kevin DeLuca's life--the deceased sheriff's son intent on forcing the truth about his father's death from Max. Unable to fight Kyle with their alien powers, the alien teens realize that Kyle is using Project Clean Slate technology to block them. The group desperately tries to calm Kyle down--but before they can, Elsevan DuPris teleports into the room, intent on stealing a second Stone of Midnight from them. In the confusion, Trevor simply gives DuPris the stone, announcing that he had come to Earth for that very purpose and offering to join DuPris in his quest to destroy the collective consciousness. Before Michael and the others even have a chance to react, DuPris and Trevor teleport out, leaving the others behind with a shocked Kyle Valenti.
After convincing Kyle that his father was killed by DuPris, Kyle demands that they all leave him alone. The teens gladly oblige, taking a moment to make sure Maria's little brother is okay, before delving into their own separate issues. Michael is shocked by the betrayal of his brother, Alex seems to be more interested in his newfound popularity than dealing with the dangers of DuPris, Liz is crushed by Max's descent further and further into the collective consciousness--and to top it all off, Isabel begins her akino.
Sick and weak, Isabel refuses to join the collective consciousness. Max tries to convince her that it is a good thing, a great way to connect with their home planet, but she says that she would rather die than become the collective consciousness' puppet. Afraid that her friends will force her to join the consciousness when she becomes too weak, Isabel runs, hiding in a hotel with Michael. Meanwhile, Trevor visits Michael in his dreams to try and explain his actions--and Michael learns that Trevor survived his akino without dying or joining the collective consiousness.
When Isabel is at the point of death, Michael begs his brother for help. Trevor tells Michael to bring Isabel to DuPris' hideout, where he and DuPris have been trying to gain enough power to shatter the collective consiousness once and for all. All of the teens arrive at the hideout, hoping to stop DuPris and save Isabel's life. Upon seeing the horrible shape that Isabel is in, Trevor is worried that her human body won't be able to withstand the akino the way his alien body had. He takes a Stone of Midnight and uses its energy to help ease Isabel's pain--and successfully saves Isabel's life.
When DuPris learns that Trevor used the Stone of Midnight without his permission, he decides it's time to teach Trevor a little lesson about power and following orders. To make a point, he points the stone at Adam and cleanly burns a hole through the young alien's heart, instantly killing him. Immediately, Trevor realizes that DuPris is evil, even though his cause may be noble, and without a second's hesistation, he kills DuPris.
Overcome with shock at the death of Adam, it hardly matters to the teens that DuPris is dead or that they once again have possession of two of the three Stones of Midnight. They all decide that they need to destroy the collective consciousness. Even Max agrees--but as soon as the words leave his mouth, he goes slack, his mind taken hostage by the collective consciousness.