Invasive

This story is all the more scary because I think that the science is possible.

{spoiler}
I think that there is an inconsistency in the story, though. Early in the book, the wax blocking the ants into the container was presented as being easy for the thawed ants to tear apart so that they can exit. That's how the ants were delivered, without eating the delivery boy. However, in the final chapters, a container is in a pocket for a long time before the human scratches out the wax.