Last Man Standing

{Fourth and final book in the Apocalypse Series}
With two groups joined as one and two members short, the friends head to Canada in hopes of finding a way to live normally again in a safer environment. Along the way it becomes apparent that maybe Mark's blood isn't the cure they've been thinking it is.
...
"This guy thinks we're infected!" Nate grits his teeth, slamming his fist against the glass encasing him but it does nothing, "He's going to kill us!"

"Nate, look at me," Mark urges, "We can get through this, I promise you. I got us in this mess, and I'm going to get us out."

Nate laughs but there's tears falling down his face as he faces Mark, "I seriously hope so. 'Cause I'm not ready to die yet, Mark. I'm not ready to die.."
...
"I can't believe we just handed Mark over like that." Cry sighs.

"He's going to make a cure," Ken shrugs, "We're doing the right thing aren't we?"

"Are we?" Cry frowns, "Because I don't think we are. The only way I see this ending is with our friend's death. I know I don't want that. Do you?"