Mira Grant—a penname for Seanan McGuire—can often be found on the Hugo ballot, and this year is no different. Admittedly, the central conceit of Parasite is a large pill to swallow, and takes a bit of handwaving to gloss over the details.
In Grant’s near future thriller, the majority of the world has willingly ingested an Intestinal Bodyguard, a designer parasite intended to aid our weakened immune systems. On top of that, all the parasites are all owned by a single company—SymboGen. But once you’re on board, Grant unfurls an interesting and briskly-paced narrative.