This novel is a science fiction thriller by two authors, Douglas Preston and Lincoln Child. Gideon Crew has been asked to help destroy an alien who arrived on Earth as an asteroid. The asteroid turned out to be a seed, which has planted itself in the waters off the Antarctic two miles down. If allowed to grow and reproduce it will destroy the planet in order to send more seeds into space.

The plot is good; it keeps you reading. There is a varied cast of characters, but I found them a little flat. I wanted more from them, wanted to get into their heads. Gideon is apparently a returning character from previous books. Maybe we are supposed to know him already and that’s the reason I’m not feeling particularly attached to him.

Still, the story is good and I enjoyed the adventure.