I had a complete braincell-explosion in my car yesterday. I was in crazy traffic, on the way to the mall (which is insane; the mall two days before Christmas is a madhouse on steroids), when I suddenly thought, "If Cassie gave Tom the blue cube, then that means she handed over the ability to morph. If she hadn't done that, then would have Rachel still died? If the two are connected, then doesn't that mean Cassie murdered her best friend? Also, doesn't that make her responsible, in a small way, to what happens to Ax? He would never have had to go after the blade ship if Rachel successfully took it, what with her not having to fight anyone who morphs. Does that thought never occur to her? How do Jake (incredibly depressed and full of regret Jake) and the others die but Cassie gets to have a happily ever after without having any emotional/mental problems that we can see?"
My mind went blank, I was filled with this overwhelming sense of unfairness, and I sort of stared at the traffic light in front of me for a second until the dust sort of cleared and I thought, "Surely, there's a detail I'm missing." And I focused on traffic because I didn't want to DIE on my way to Bath and Body and Barnes and Noble.