Michael Grant said this quote

Albert, I don’t know how long we can keep Sam involved at all,” she said.“You’re upset,” Albert replied.“Yes, I’m upset. But that’s not the point. Sam is out of control. If we’re ever going to have a working system we may have to find someone else to play the role of savior.”Albert sighed. “Astrid, we don’t know what’s out there in the night. And maybe you’re right that Sam is out of control. But me? I’m really glad it’s him out there getting ready to face whatever it is.”Albert picked up his omnipresent notebook and left.To a now empty, silent room, Astrid said, “Don’t die, Sam. Don’t die.