Amazon Blurb:

The final book in Mira Grant’s terrifying Parasitology trilogy.
The outbreak has spread, tearing apart the foundations of society, as implanted tapeworms have turned their human hosts into a seemingly mindless mob.
Sal and her family are trapped between bad and worse, and must find a way to compromise between the two sides of their nature before the battle becomes large enough to destroy humanity, and everything that humanity has built…including the chimera.
The broken doors are closing. Can Sal make it home?


“We’re all monsters…Being a monster is not the same as being a bad person. It just means you’re willing to eat the world if that’s what you have to do to keep yourself alive.”


The final Parasitology book was everything the series promised it would be. It was full of action, full of adventure, full of horrifying experiences and a world gone to ruin. What I got was definitely what I expected when I started it.

We start the book with Sal once again being separated from her family. It was for their own good, it had to be done. However, I’m so, so tired of it. I want them all to be together and be happy. I want them to stop having to make a choice between the worst possible choices for them. Sal knows who her family is, and it isn’t the Mitchells. It isn’t the people who are continuing, to this day, to remove her and let Sally (who is definitely gone) take over again. It isn’t even really humanity. Or not humanity only.

Sal’s concept of family also changes over the course of the book. In the biggest change between Symbiont and Chimera, Sal finds a little girl chimera, about four years old. Sal knows what to do. She knows to her core she wants to be a mother to that little girl. This is the biggest and best change of the series. With the little girl, with Juniper, she knows she has to stay with her family from now on. No more sacrificing herself and finding her way back somehow. Best change, by far.

The funniest (in a dark humour sort of way), and saddest, thing is Sherman. He is so far gone down the rabbit hole of crazy there is no coming back. There is no cooperation, there is no compromise. Sherman is crazy. His obsession with Sal has basically consumed him. He blames her for everything, because the things that he did to her without her consent are her fault.

This shows that this is, if not the end of the world, then the end of the United States. There aren’t many survivors. The infrastructure left over for who managed to survive is basically gone. The government has all but broken down. There isn’t really anyone left to clean up, not at the scales necessary. Survival has taken over. Bouncing back from this may not be possible. This is an interesting change from Newsflesh, who was able to bounce back almost immediately. I just don’t know how it is possible for Parasitology at the stage we left it at.

This was a crazy, crazy trilogy. It wasn’t kind to the characters. They went through their own versions of hell. Yet they have come out the other side and have survived. It is possible, perhaps, that someday we could get more. The ending wasn’t a hard ending. Yet, this story is probably over forever, and it has ended well.

To read more reviews for this series, check out the Parasitology series page!